Hi, I'm also having issues when hitting stop (or esc or spacebar) in motion tracker window to stop tracking. After Effects simply crash and close! I'm running latest version of AECC2015 (just checked Creative Cloud) in an iMac running Yosemite.
My video files are .r3d, I thought that was the problem so I converted to PorRes but I got the same crash.
My comp is very simple and there is only one layer with the video to be tracked. Further specs: 24fps and 4096x2160 resolution.
Any tips on how to solve this? Szalam Need more info?
