Check to see if there were any custom fonts used in the original footage that are missing from the new system. If not, can you send in the project and footage in a bug report? You can mark it attention Will.
Thank you for it back, I did some tests but I also updated our After Effects CC 12.0 to 12.1.
I retrieve the fonts machine with After Effects 5.5, but still the same problems.
there is a log file somewhere ??
Or how can I generate a log file when you have this sort of trouble?
Thank you in advance
After checking we performed the test Next:
Remove all fonts except the original.
Test opening After Effects project => OK
Then we submitted the most used by the graphics progessivement fonts.
The problems is many Fonts, Thanks for your help Will