If a prerecorded yoga video goes black at the loop point, first check the playback control on the OBS source that feeds the stream: a single file uses Loop on a Media Source, while a playlist uses Loop Playlist on a VLC Video source. Then compare OBS, a local recording, YouTube’s Live Control Room preview, and the watch page to find where the picture disappears. The symptom alone does not identify the cause; it could be source playback, visibility, encoding, or delivery.
Check the OBS source that plays the video
A viewer-side YouTube repeat control is not what loops a prerecorded video being sent as a live stream. The encoder software is playing that video, so check the source in OBS that actually feeds the scene.
For one video file
- In OBS, select the scene used for the stream and identify the source containing the yoga video.
- Open that source’s properties and confirm it is a Media Source pointing to the intended file.
- Enable Loop. OBS describes this setting as specifying whether the file plays again once playback has completed. See the OBS Project’s Media Sources reference.
- Test the source through the end of the file and into its next start. Do not assume a checked box alone confirms the scene is outputting the intended picture.
For a playlist
- If the source is a playlist, check that it is a VLC Video source rather than a single-file Media Source.
- Enable Loop Playlist in that source’s properties and test across the end of one item and the start of the next.
OBS says VLC must be installed for its VLC Video source type to be available. The two loop controls apply to different source types; changing the single-file setting will not configure a VLC playlist. Details are in the OBS Project’s VLC Video Source reference.
Inspect playback-end and visibility settings
In the Media Source properties, check Show nothing when playback ends. OBS documents that this option hides the source after the file finishes. If that behavior is enabled, it may explain why the source disappears at the end rather than showing the next expected picture. It is a diagnostic clue, not a guaranteed fix for every black screen.
Recommended Free Tools
#1 Best Overall
- Read Before You Buy — No Video Output: These adapters support charging and USB 2.0 data transfer, but cannot transmit video signals. Except for standard USB webcams (which use USB data only), they are not compatible with HDMI/DisplayPort cables, video-capable USB-C hubs, or docking stations with video output.
- Convert USB-A Ports to USB-C: Designed to connect USB-C earphones, cables, flash drives, card readers, and other USB-C accessories to standard USB-A ports. Plug-and-play with no drivers or software required.
- Aluminum Alloy Housing: Built with a sturdy aluminum alloy shell that aids in heat dissipation and protects against daily wear and scratches. Designed to maintain a stable and secure connection.
- Compact & Travel-Friendly: The ultra-compact design allows the adapter to stay plugged into your device without blocking adjacent ports or adding bulk, reducing wear and tear on your original USB ports.
- 12-Month Warranty: Backed by a 12-month manufacturer warranty for peace of mind. Designed to meet strict quality control standards for reliable everyday performance.
Also confirm that the source and its scene remain visible and active at the loop boundary. If the source goes black in OBS itself, focus on the selected file, source settings, and scene before changing YouTube settings.
Find where the picture disappears
Compare the same moment—the end of the video and its next start—in each view below. These observations narrow the next check but do not, by themselves, prove the root cause.
Rank #2
- 5-in-1 USB-C Hub: Experience comprehensive connectivity featuring a Power Delivery input, two USB-A 2.0 ports, a USB-A 3.0 port, and an HDMI port. (Note: The USB-C power delivery input port is only for connecting an external wall charger to power your laptop and cannot power peripheral devices.)
- 90W Pass-Through Charging: Achieve optimal charging with 90W pass-through power to your laptop, supported by a total input of 100W, with the hub reserving 10W for operational efficiency. (Note: Wall charger not included.)
- Quick Data Transfers: Accelerate your productivity with rapid data transfers using a high-speed 5Gbps USB 3.0 port and two 480Mbps USB 2.0 ports.
- 4K HDMI Display: Enhance your visual experience with a hub capable of delivering 4K resolution at 30Hz in both mirror and extend modes. Please note that this hub is compatible with MacBook (macOS 12 and newer), Windows 10 and 11, ChromeOS, and laptops equipped with DP Alt Mode and Power Delivery. Note: This device is not compatible with Linux.
- What You Get: Anker USB-C Hub (5-in-1, 4K HDMI), welcome guide, 18-month warranty, and our friendly customer service.
| What you see | Where to investigate next |
|---|---|
| The source or scene is black in OBS preview | Check the media source, file, loop control, playback-end behavior, and scene visibility. |
| OBS preview looks right, but a local recording is black | Check OBS output and encoder behavior. Review the recording around the loop boundary. |
| OBS and the local recording look right, but YouTube’s incoming preview is black | Check Live Control Room stream-health messages, encoder errors, and the outgoing connection. |
| YouTube’s incoming preview looks right, but the watch page is black | Compare the live output and viewer-facing page, then check YouTube stream health and delivery. The difference points away from the OBS source but does not establish a single cause. |
YouTube’s Troubleshooting live stream issues advises checking the encoder’s output, encoder errors, CPU load, and local archive. If the encoder’s own view is healthy, YouTube says an outbound-connection issue may be involved.
Check YouTube preview, stream health, and format
- Before a scheduled stream, run a test and let it cross the loop boundary. YouTube advises testing before an event and monitoring audio and video quality during the stream.
- In YouTube Studio’s Live Control Room, wait for the incoming stream preview and check the stream-health messages before going live. YouTube’s encoder setup guide says to wait for the preview, then click Go live.
- If YouTube reports a supported stream-format error, check the encoder output format. YouTube identifies H.264 video and AAC audio as the expected formats in its live-stream troubleshooting guidance.
- Review the encoder’s CPU load and errors while the stream crosses the loop point. If OBS output is already black, YouTube’s preview cannot repair the source problem; if OBS output is healthy, continue with connection and stream-health checks.
Check upload bandwidth if the outgoing stream is affected
If the local output looks correct but YouTube’s incoming preview or stream is disrupted, check the connection used by the encoder. YouTube recommends leaving 20% upload-bandwidth headroom in its streaming tips. Treat that as guidance for diagnosing upload capacity, not proof that the network caused a black screen timed exactly to a loop.
What’s actually slowing this PC down?
Pick the symptom - the matching free tool is one click away.
Rank #3
- Sleek 7-in-1 USB-C Hub: Features an HDMI port, two USB-A 3.0 ports, and a USB-C data port, each providing 5Gbps transfer speeds. It also includes a USB-C PD input port for charging up to 100W and dual SD and TF card slots, all in a compact design.
- Flawless 4K@60Hz Video with HDMI: Delivers exceptional clarity and smoothness with its 4K@60Hz HDMI port, making it ideal for high-definition presentations and entertainment. (Note: Only the HDMI port supports video projection; the USB-C port is for data transfer only.)
- Double Up on Efficiency: The two USB-A 3.0 ports and a USB-C port support a fast 5Gbps data rate, significantly boosting your transfer speeds and improving productivity.
- Fast and Reliable 85W Charging: Offers high-capacity, speedy charging for laptops up to 85W, so you spend less time tethered to an outlet and more time being productive.
- What You Get: Anker USB-C Hub (7-in-1), welcome guide, 18-month warranty, and our friendly customer service.
Common symptoms and next checks
- Black screen begins exactly when the file ends: verify the correct source type and its loop setting; inspect whether Show nothing when playback ends is enabled.
- Only the playlist transition fails: check Loop Playlist on the VLC Video source and confirm VLC is installed.
- OBS is fine but YouTube’s preview is not: check encoder errors, CPU load, stream health, output format, and upload connection.
- The issue happens intermittently rather than at every loop: compare a local recording and YouTube’s preview during the failure; use the evidence to distinguish local output from delivery problems.
Keep the test useful
Record which source type and loop setting you use, the time the video reaches its end, and whether black appears in OBS, the local recording, YouTube’s incoming preview, or only on the watch page. If those checks do not isolate the failure, those details—along with your operating system, encoder, and source settings—are the useful information to gather for further troubleshooting.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Or let it run in the cloud
If your yoga channel uses uploaded prerecorded videos and you want a YouTube stream to keep running without leaving a computer on, StreamNeo runs the stream from the cloud. Upload the recording or build a playlist, add your YouTube stream key, and go live. Nothing has to stay on at home; videos stream as uploaded at any quality up to 4K 60fps for one flat price per slot, and StreamNeo automatically recovers if YouTube drops the stream. The first day is free with no card. Monthly: $9.99 per month. Start your free day with StreamNeo.
Quick Recap
Best Value
- 5-in-1 Connectivity: Equipped with a 4K HDMI port, a 5 Gbps USB-C data port, two 5 Gbps USB-A ports, and a USB C 100W PD-IN port. Note: The USB C 100W PD-IN port supports only charging and does not support data transfer devices such as headphones or speakers.
- Powerful Pass-Through Charging: Supports up to 85W pass-through charging so you can power up your laptop while you use the hub. Note: Pass-through charging requires a charger (not included). Note: To achieve full power for iPad, we recommend using a 45W wall charger.
- Transfer Files in Seconds: Move files to and from your laptop at speeds of up to 5 Gbps via the USB-C and USB-A data ports. Note: The USB C 5Gbps Data port does not support video output.
- HD Display: Connect to the HDMI port to stream or mirror content to an external monitor in resolutions of up to 4K@30Hz. Note: The USB-C ports do not support video output.
- What You Get: Anker 332 USB-C Hub (5-in-1), welcome guide, our worry-free 18-month warranty, and friendly customer service.
Rank #4
- Dual Converters, Infinite Potential：Includes 2× USB C male to USB A female adapters and 2× USB A male to USB C female adapters. Perfect for a wide range of uses—tablets with Bluetooth keyboards, expand USB ports on macbook, and more. Two different converters for all your daily needs
- Next-Level 10Gbps & 3A Charging: No more slow 480Mbps, this usb to usb c adapter has a transfer speed of up to 10Gbps, allowing you to do more transferring in less time. This usb adapter fits both USB A and USB C charger, supporting up to 3A fast charging
- Upgraded Exquisite Craftsmanship: With an aluminum alloy housing and metal connector, the usbc to usb adapter is extremely durable and sturdy. Rigorously tested to withstand more than 10,000 times of plugging and unplugging, ensuring long-lasting performance
- Broad Compatible: The usb c to usb adapter widely supports all USB C/ USB A devices like laptops, tablets, cellphones, car chargers, and phone chargers. Such as compatible with MacBook Pro/Air 2023/2022, Thunderbolt 4/3 Devices,Apple MagSafe Watch 9/8/7/SE/Ultra, iPad Pro 2022/2021, Samsung Galaxy S23/S20/S10, and iPhone 17/16/15 Pro. Plug and play
- Please Note: To reach 10Gbps speed, keep the cable under 3.3 ft. For USB A Male to USB C adapters, try flipping the USB C connector. USB C Male to USB A adapters support bidirectional 10Gbps transfer within 3.3 ft
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
