New Masking not rendering in Media Encoder

Report · Oct 01, 2025

Steps to reproduce:
    1. .Use the New AI Masking tool in a sequence
2. Export > Send to Media Encoder
Result: Render ignores layer with mask
Expected: Final product should have masking

System info
    Application: Adobe Media Encoder (Beta) v25.6.0.80
    OS: macOS v15.7.1, RAM: 32,00 GB GB, CPUs (logical): 8

__________

Previous beta version had a warning "Some Object Masks are Offline and will be ignored" That version was only ignoring the mask, not the layer itself.

I've saved the project differently and updated to the latest beta version of the After Effects Beta. Now there is no warning but render preview shows that layer with the new AI masking is ignored completely.

Report · Oct 02, 2025

I can repro and filed a ticket for this. Thanks for letting us know.

Report · Nov 12, 2025

I’m experiencing the same issue. Has anyone found a solution?
When I use the Object Mask Tool to isolate the signer and nest the signer with the background into one sequence, Adobe Media Encoder only renders the background - the signer is missing. Rendering directly from Premiere Pro works correctly, but I need Media Encoder to handle batch exports properly. Any updates or fixes?

Report · Nov 21, 2025

Same issue here! (But hey the masking tool is so nice!!)

System info :
Application: Adobe Media Encoder (Beta) v26.0.0.36
OS: macOS v15.7.2, RAM: 32.00 Go GB, CPUs (logical): 10