Thanks for the response.
Version 5. 20190119
So I tested a different mouse and cables and had the same issue.
Reverted back to the original and tried a different game and profile - no problem.
I need to do some more testing, but I think it might have something to do with my inventory or looting auxiliaries for Apex. I don't think it has anything to do with SAB, but I didn't notice it happen before the beta.
For example, I hold tab to open my inventory screen. In my auxiliary for inventory, I have right click set up as square (I think - PS4) to drop items. When I'm finished in the inventory, I stop holding tab and my controls go back to their standard hip functions.
I'll test this more and confirm. But if this is this case, has anyone got any ideas about what is happening? And hopefully, how I can ensure that whenever I'm on 'hip' right click activates ADS. I would have thought by having the auxiliaries as 'hold' there wouldn't be an issue.
Thanks