no other software, just the xbox controller through the wireless adapter in the USB port and when I tried with my ps4 controller, I just plug it straight in with the cable..

yeah, I'm not sure what it is tbh... so when I turn on my pc and controller it's normal, then I load ffxiv and it's still fine. It's when I start pressing buttons and try to do stuff in-game then it starts playing up randomly during dungeons but I've noticed it mainly happens when I try going into the main menu when I try to go into the duty finder etc but the weird thing is when I close ffxiv it still has control over my mouse even when I've exited the game... so maybe it's when I press menu on my controller it's activating mouse mode? but its not keybound... and that doesn't explain why it still has control over my mouse once I've existed the game..