I had it happen to me for the first time in a few years yesterday. and i'm curious. in the system settings under game pad there is an option "keep gamepad enabled when client is inactive" I usually have this on all the time because it means I can put media player in a corner of my screen and watch Netflix or something while I craft / gather. however yesterday I turned it off so I could play an emulator while waiting for a duty queue. forgot to turn it back on and the gamepad froze up on me randomly twice during the duty. turned the option back on and has never happened since.
so i'm wondering if it's possibly a bug where some process or other makes the game register as an inactive process for a moment and thus stops accepting game pad commands..
unrelated but I know other games had similar issues years ago where controls would freeze if you got a skype / msn popup or something because it registered that popup as the foreground process. doesn't happen much these days as most things have a silent mode that blocks popups when something runs full screen. but I wonder if something somewhere is dropping xiv to a background process even for just a second.
Generally at entirely random intervals sometimes just for a second the controller either stops responding or freezes on the last input you made. the problem is that with it literally only being a second sometimes it's incredibly hard to catch diagnose or even demonstrate. it might happen twice in 5minutes or once in an hour.
it might for example only happen for 1 second in 30 minutes of playing. but if that one second is in a fight when your running out of a telegraph on kefka or something there's a pretty good chance your going to keep moving in the same direction and go off the edge of the arena because the controls have frozen for a second and not realised you've let go of the left stick and thus your now dead.