Hope your issue is solved yet but if not please read further.
It seems like a third-party plugin or theme conflict issue, so to narrow things down, deactivate all plugins nonessential to BP functioning and then re-activate them one by one until the issue reappears.
Please make sure to take a proper backup prior.
In case of a theme, please activate a theme that is known to behave correctly with BuddyPress, that will be any theme that is in the default install from WP, so choose either ‘Twenty Twenty-two’, ‘Twenty Twenty-three’, or a later one. Having activated one of these themes, check again if you still have the same issue, if you haven’t then this tells us it’s theme-related, and in the first instance, you should contact the theme author for help.