Users have reported that working in ACES or high-dynamic-range color spaces can cause the ML engine to fail. Switching to OCIO Legacy or Rec.709 within Mocha often restores the render.
I am experiencing a consistent render failure when attempting to generate clips with the Matte Assist ML module active. The process begins but fails shortly after initialization, resulting in a black screen or an immediate crash of the render queue.
To help narrow down the specific cause of your , please share: The operating system and GPU model you are using.
On Linux systems specifically, propagation failures have been identified as CUDA errors on virtual GPUs matte assist ml render failure mocha pro verified
Downscale your composition preview resolution (e.g., from Full to Half or Quarter) before running the Matte Assist analysis. 3. Re-initialize Mocha Pro's Hardware Acceleration
Some users reported that the ML tool selects the entire shot regardless of the input.
Highly compressed inter-frame codecs (like heavily compressed H.264 or H.265/HEVC) can cause decoding errors that cascade into the ML rendering pipeline. Users have reported that working in ACES or
The specific neural network weights used by Matte Assist can become corrupted in the local cache, or the application may fail to allocate the scratch disk space required for temporal ML evaluation.
What are you using? (After Effects, OFX, etc.) What is your GPU model and current VRAM ?
The process typically breaks down due to three primary bottlenecks: The process begins but fails shortly after initialization,
: If "Apply Matte" isn't working back in AE, ensure you have actually clicked "Generate Object Matte" inside Mocha and saved the project before exiting.
: 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
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