Apply Mocha Pro directly to the raw footage or a clean adjustment layer rather than a nested pre-comp pre-loaded with heavy third-party color grades or grain effects.
Apple ProRes 422 HQ (macOS) or Avid DNxHR HQX (Windows).
Re-run the Mocha Pro installer and choose the option, or manually download the offline ML model pack from the official Boris FX website to overwrite the directory with clean, verified files.
Matte Assist ML is a machine learning feature in Mocha Pro designed to automate the rotoscoping process. It uses AI to automatically generate and track masks around objects in a video clip, drastically reducing the time needed for manual frame-by-frame masking. It is part of a larger suite of AI-powered masking tools introduced in recent versions, including Object Brush ML and Face Detection. matte assist ml render failure mocha pro verified
: 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 :
If your render queue fails or freezes with Matte Assist ML enabled, follow this verified troubleshooting guide to isolate the cause and fix the issue. Root Causes of Matte Assist ML Failures
Avoid masking too much in a single shape; break complex objects into multiple tracked moving parts. System Requirements & Official Support Apply Mocha Pro directly to the raw footage
: Mocha Pro leverages AI to improve tracking accuracy and speed. This includes better handling of complex scenes and less manual intervention.
By default, Mocha Pro attempts to use your primary GPU to accelerate ML tasks. If there is a driver conflict, changing the processing backend will bypass the crash. Open (either as a plugin or standalone).
: Download the latest Studio Driver rather than the Game Ready Driver. Studio Drivers are specifically optimized for stable background processing in applications like After Effects, Premiere, and Mocha. Use the "Custom Installation" option and check "Perform a clean installation" . Matte Assist ML is a machine learning feature
: Some users report failures in ACES or color-managed workflows. Try setting the Mocha working color space to Legacy (OCIO Legacy) or ensuring it matches your input clip (e.g., Rec.709).
Disable "Multi-Frame Rendering" (MFR) in After Effects ( Preferences > Memory & Performance ) as a test. MFR tries to spin up multiple instances of plugins across CPU cores, which can cause concurrent, conflicting demands on the GPU VRAM by the Matte Assist engine.