I've been having issues with the latest patch where the games are crashing whenever I have Action! 1.27.2 up and running.
Reinstall doesn't seem to work, so I decided to try my old fix, which was to go to the version history page: https://mirillis.com/en/products/action_history.html and get an older and working version.
Now, however, all the versions has the same exact file, which is the 1.27.2 file.
I can't use Action! now until it's patched, except for the very first Action! version I installed which was back in 2013 with the BF4 Beta.