I feel like a proper idiot asking this question but Chat isn't working so I'm hoping someone here can help.
I'm trying to open a project that someone else created but when I try to open it, it says it's been created in 13.1.
I have AECC 12.1. . . I've literally only just updated in Creative Cloud yesterday but I still only have version 12.1.
What the hell is going on? Am I missing something really obvious?
Running Mac OSX 12.9.5
After Effects version 13 is installed as a separate piece of software from version 12. It is called "After Effects CC 2014". You should be able to install it from the Creative Cloud software.
There are tons of new features in version 13.
Although, you're not even on the latest version of 12! You should be on 126.96.36.199 if you're updated!
Try rebooting your machine and updating the Creative Cloud software.