: For users in ACES workflows, a common fix is to change the Mocha color space to Legacy (OCIO Legacy, with the working color space set to Rec.709 ). GPU Drivers & Hardware :
After analyzing user reports and conducting extensive research, we've identified the following common causes of Matte Assist ML render failure:
: Sometimes, adjusting project settings or optimizing how your project is set up within Mocha Pro can help resolve render issues.
Mocha Pro processes frames most reliably when they are uncompressed or intra-frame compressed.
Use Display Driver Uninstaller (DDU) to completely wipe old driver remnants before installing the latest stable version.
: This could imply that the issue or feature is officially recognized or documented by the developers of Mocha Pro, or that the software has verified or authenticated the process or result in question.
Complex project hierarchies can confuse the render pipeline when the host application requests data from Mocha Pro.
: Save your progress in Mocha Pro, then exit to the host application. Purge the host’s cache (e.g., in After Effects, go to Edit > Purge > All Memory & Disk Cache ). Re-opening Mocha usually resolves temporary resource locks.
Mocha Pro caches calculated matte data and model states to speed up timeline scrubbing. A corrupted cache file will cause the ML engine to fail consistently on specific frames.
I can provide specific settings or steps tailored to your system layout. Share public link
To ensure your "verified lifestyle" content renders smoothly every time:
Choose a if prompted, and ensure that "Machine Learning Models" or "Matte Assist Models" is explicitly checked for installation. 5. Check Source Footage Codecs
: Rendering, especially with ML, requires significant computational power. Insufficient resources (like GPU power, RAM, etc.) can lead to failures.
If the error persists, you can find the exact point of failure by checking the Boris FX log files. Navigate to your system's application data folder: %APPDATA%\BorisFX\Mocha Pro\ macOS: ~/Library/Application Support/BorisFX/Mocha Pro/
Now that you know the most likely causes, follow this checklist of proven solutions. Start from the top and work your way down.
: Ensure your source footage and the Mocha project settings (Dimensions, FPS, and Pixel Aspect Ratio) match exactly. Mismatches here often cause "verified" tracks to look broken or fail to render in the host. Mocha Matte Assist ML Quick Start - Boris FX Continuum