The only thing that comes to mind is if you really are turning on mouse broadcasting *from* both PCs. The default Activate Repeat mapped key (Shift+Alt+R hotkey, and the "A,A" icon) activates it only in the current window, so you would have had to either set up your own broadcasting hotkey (e.g. in your Repeater Profile, under Hotkeys, if you configured one there that would be important to mention since there is an "all windows" toggle option there that would affect both PCs), or edited that Mapped Key, in order for this to be the issue.

If you broadcast from both PCs, and both PCs have an active foreground window with the mouse in it, and you turn on mouse broadcasting from both, then they will attempt to broadcast to each other.

Broadcasting mouselook (right click and hold, move mouse) will not be incredibly successful in SWTOR at the moment if you try that. Especially not if both PCs are trying to broadcast mouselook to each other, and even more not if one is mouselooking while the other is not. SWTOR centers the mouse -- every single frame -- while it is hidden for mouselook, and that centering can get broadcast too.


I could probably rule this out by seeing your configuration. HOWTO: Share your configuration for better support