Hi,
I can confirm that this also happens for me in the A332 RR. I've verified that there are no conflicting binds whatsoever - I use the same control profile for the Fenix A320 and ini A350, both of which have functional right brakes. The left brake axis seems to operate all brakes, and despite troubleshooting and verifying that only the left and right brake axes are set, the problem persists.