I've been having this same exact issue for quite some time as well and only with FFXIV too for me as well and same with trying outer controllers i started out with wireless ps4 controller tried wired xbox controller and now im using an xbox one because several people had told me it might be a compatibility issue with ps4 controllers on windows but that doesnt seem to be the case because again works fine with all other games literally every single other steam game thats in my library works just fine, but FFXIV nope I got kicked from a Sophia group the other day as a result of the issue because i walked right off the ledge before i regained control of my character I don't have a solution i just wanted to let you know your not alone, i might actually try putting in a support ticket for it because idk what else to do