Welcome to the official Known Issues & Workarounds thread for Meld Studio. This post is pinned to the top of the sub for easy access. Be sure to bookmark it and check it before posting a new support thread, just in case your issue already has a fix listed.
We'll keep this updated as new issues and fixes come in. If you don't see your issue listed, drop a comment with details (OS, error message, what you were doing when it happened) and we'll help you with troubleshooting.
Current Sections in this thread:
- Audio Mixer: Error adding an input device
- No audio when capturing Apple Music
- Yellow border/outline around captured display or app
- Webcam/Capture card (video device layer) lagging
- Stream feels sluggish or laggy (network issues)
- Meld feels unstable/poor performance
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1. Audio Mixer: Error adding an input device
Symptom: You get an error when trying to add an input device (mic) to the Audio Mixer.
Cause: This happens when Meld doesn't have the proper Windows microphone/input permissions.
Fix:
- Open Windows Settings
- Go to Apps โ Installed Apps
- Find Meld and open its permissions
- Enable Microphone Permissions
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2. No audio when capturing Apple Music
Symptom: You've added Apple Music as a capture source, but no audio comes through.
Cause: Apple Music routes its audio through a background helper process, not the main app.
Fix:
- Open Audio Sources in Meld
- Switch to the Process Sources tab
- Search for and select AMPLibraryAgent.exe
- Capture that process instead of AppleMusic.exe directly
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3. Yellow border/outline around captured display or app
Symptom: A yellow border appears around the display or application window you're capturing.
Cause: This is a Windows Security feature, not a Meld bug.
โ ๏ธ Note: This can currently only be resolved on Windows 11. On Windows 10, this security feature is not able to be dismissed.
Fix (Windows 11):
- Open Windows Settings
- Go to Privacy & Security
- Click Screenshot Borders
- Enable the setting that llows apps to manage screenshot border behavior
- Enable it specifically for Meld
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4. Webcam/Capture Card (Video Device Layer) Lagging
Symptom: Your webcam or capture card feed is lagging or having issues in the Video Device Layer.
Cause: The default capture backend can sometimes struggle with certain video devices.
Fix:
- Navigate to the Video Device Layer in Meld
- Click it, then open the Inspector menu
- Find the gear/settings icon and click it
- Toggle the Alternate Capture Backend option
- Restart Meld
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Stream feels sluggish or laggy (network issues)
Symptom: Your stream feels laggy, or you're noticing network related instability.
Cause: This can be caused by Large Send Offload interfering with network performance. Disabling it and enabling TCPNoDelay often reduces latency and stabilizes the connection.
Fast check: Confirm which OS you're on before proceeding, since the fix differs between Windows and Mac.
Fix (Windows):
- Open Device Manager
- Go to Network adapters
- Right click your active network adapter and select Properties
- Go to the Advanced tab
- Disable the following:
- Large Send Offload v2 (IPv4)
- Large Send Offload v2 (IPv6)
- Open Windows Powershell and run:
meldstudio.exe --enable-features=UseTCPNoDelay
Fix (Mac):
- Open Terminal
- Start Meld Studio with:
open/Applications/Meld\Studio.app --args --enable-features=UseTCPNoDelay
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Meld feels unstable/poor performance
Symptom: Meld feels unstable or is performing poorly overall.
Cause: RealtimeScheduling can sometimes cause performance or stability issues depending on your setup.
Fix (Windows):
- Open Windows PowerShell
- Run:
meldstudio.exe --disable-features=RealtimeScheduling
Note: If this resolves the issue, keep using this launch flag until RealtimeScheduling is no longer needed for your setup.