I know it’s been awhile but I’ll respond because I found your question while searching for the problem I had.
I found the solution to my specific problem. It occured when I had an image sized at half HD res – 960 x ??? and I changed the size to a full res HD image and purged the project to basically reload the image at full size. Project crashed and I had the exact problems you explained.
The solution was to remove that source file from the folder where AE was looking for it. When I opened the project, it said I had one missing file and ran fine.
So if you couldn’t find which file was giving you issues…you could start by cutting out folders in your project that contain TIFFs and keep reloading until you find it.
Hope this post helps someone in the future!