Roto brush crashes AE when using 4k footage
There’s a bug in After Effects whilst using the rotoscope brush on 4k footage in full res. It completely crashes AE.
My footage is in MXF format
Trillions of colours AVCi Rec 709.
This has been an issue for multiple versions of AE now. Happens using roto v 1 & 2 in Standard and Best. The only workaround I've found is using it in Half res.
My computer is:
3 GHz 10-Core Intel Xeon W
Radeon Pro Vega 64 16 GB
mac OS 10.15.7
Iestyn Lloyd commented
Hi James. Will do. The other thing I forgot to mention was my project settings. You'll get these through in the email, but here they are for anyone else experiencing this:
Video Rendering: Mercury GPU (Metal)
Color: 16 bits per channel / Rec.709 Gamma 2.4 / ☑️ Linearize Working Space / ☑️ Compensate for scene-referred profiles
James Landy commented
Hi lestyn Lloyd,
Thanks for reporting this. I haven't been able to reproduce the crash yet using internal 4K test footage. Something specific about your footage or project settings could be the culprit.
If you are willing and able to share footage with the After Effects team, please follow these steps to submit the footage and project:
In the Project panel, select the composition that contains the footage with Roto Brush applied.
Go to File > Dependencies > Collect Files
In the Collect Files dialog:
Set "Collect Source Files" to "For Selected Comps"
Enabled the "Reduce Project" checkbox
Click "Collect" and select a location to collect the project file and footage
Zip up the folder containing the newly collected project and footage.
Add the .zip to your Creative Cloud storage ( or Dropbox, OneDrive, etc. ) and email a link with a brief description of what you were experiencing to firstname.lastname@example.org. All footage submitted will be kept confidential and will not be shared with third parties.
If possible, please also include the Crash Report, and the Ae Log file.