It could be a permissions issue. Some tiny little folder somewhere buried in your folder structure isn't set right.
Alternatively, it could be some third-party script messing with things. You haven't installed any scripts or plugins yet, have you?
I can't be 100% sure since i havent reinstalled After Effects for a while, but i think that unistalling After Effects will only remove the AE package, that is, only things that have been installed by Adobe. Meaning: third party scripts are not removed.
So, even if you have uninistalled/reinstalled, still check that you don't have a third party script in the Scripts/Startup folder.
The list of files in that folder is normally :
- About the Startup folder.txt
Anything else should be third party.
I'm running into the same issue with a fresh AE install (no AE was ever installed before). Are there any solutions to this issue?
The script / startup folder only has the three files mentioned above.