I've this strange behaviour from a month so I'm using 2015.3 instead of 2017 for this issue: I have several custom shortcuts I've been using from some time.
When I change them in the txt shortcut file and I start After Effects they are resetted to the default ones. In the other versions this doesn't happen, so how I can use 2017 version with my custom shortcut?
Any ideas because the shortcuts are brought back to the defaults?
If your preferences are being reset then uninstall the app and reinstall, that happened with my Photoshop and now it's fine.
In this shortcut file, line 202 + 203 must be changed to the right value as well. Otherwise, AFX won't recognize this file and restore the default one.
In version 14.2, it's:
["** header **"]
"major_version" = "89"
Thanks Martin, this is the right solution!