Playback & media servers · software
Millumin troubleshooting
The Millumin problems live-event techs bring to Ask Roadie most (also called Millumin 4). Pick your symptom, or describe your own in plain words, and get the likeliest fix first, with the manual page when there is one.
Common Millumin errors & problems
What techs run into most, and what's usually behind it. The step-by-step fix for your exact software is in Ask Roadie.
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Blackmagic capture card / live input not detected
Likely cause: Millumin reads capture via the same macOS/Blackmagic layer QuickTime uses, so getting the signal into Desktop Video Setup is the real fix; a device invisible there is a driver/cabling/power fault, not a Millumin bug.
- Step-by-step fixGet the fix →
Move a Millumin license to another Mac
Likely cause: Activation is bound to machine seats, so an explicit deactivate/activate is the clean transfer path and avoids 'no seats left' at load-in.
- Step-by-step fixGet the fix →
NDI output shows a white or black frame on a blank cue
Likely cause: The white-on-blank behavior was traced to specific (beta) builds and corrected; running current firmware removes it.
- Step-by-step fixGet the fix →
Send or receive DMX / Art-Net from Millumin
Likely cause: Millumin speaks the three standard DMX transports, so it drops into a lighting network as a sender or receiver; matching universe and IP range is what makes the link appear.
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Sync Millumin to external timecode (LTC/MTC)
Likely cause: Locking playback to house LTC/MTC keeps video frame-accurate with audio/lighting.
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Update Millumin / what is the current version
Likely cause: Running one known-good, matched build on every machine prevents surprise behavior changes; 5.14 reworked the script editor and added silent-edition, auto states per column, integrated media editor, HDR and advanced gradients.
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Video playback stutters or is choppy
Likely cause: Millumin decodes ProRes and HAP with hardware/GPU acceleration; H.264/HEVC lean on CPU and stutter under load.
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Which codec should I export for Millumin?
Likely cause: ProRes and HAP are the two families Millumin recommends; HAP is decoded largely on the GPU so it scales to 4K+ and many layers, ProRes gives best quality on Apple Silicon.
- Step-by-step fixGet the fix →
Which Millumin version / macOS do I need?
Likely cause: Matching the app major version to the OS avoids launch/compat failures; V5 is a paid upgrade from V4 so confirm the license covers it.
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White lines / watermark across the output
Likely cause: The white-line overlay is Millumin's expired-trial marker; activating a license removes it.
Not on the list? Describe it your way, or paste the error code off the display. Ask Roadie works the problem with you until it's fixed or you have a clear next move.
How Ask Roadie helps with the Millumin
- 1. Pick the Millumin. It's already in the list.
- 2. Describe what you're seeing. In your own words, or the error code off the screen.
- 3. Get the likeliest fix first. Steps in order, the manual page when there is one, and a note when other techs have confirmed it.
- 4. Still broken? Tap 👎 and it keeps going from where you left off.