Repeated crashes in AE CC 2015.3

I’m trying to track some 2K ProRes 422 HQ footage with the Mocha Pro 5 Plugin for AE. It’s consistently crashing AE when I try to track just one simple mask. Anyone else having this problem? I even tried tracking it at half resolution, but no luck. I emptied my Disk Cache, Cleaned Database and Cache, restarted the computer, but it’s still crashing.
Computer specs:
Mac Pro 2012
OSX El Capitan 10.11.5
2 x 2.4 GHz 6-Core Intel Xeon
nVidia Titan X

Can you send us your mocha log and the crash log please: martinb[at]

It’s possible this is related to your driver. Have you tried turning off GPU tracking in the mocha plugin and restarting AE? We don’t officially support the Titan X card on OS X yet: Boris FX | Supported Graphics Cards