I’ve noticed the same issue for the Timber engine, something up with the level and position parameters. In particular, when you go into the Edit menu, the Level parameter seems to be stuck at -4.0dB? If I tweak it sometimes I can get it to change, but it snaps back there weirdly.
Otherwise loving the Norns version of Orca! In addition to access to a bunch of great onboard synths and samplers - and softcut! - I really think the Norns-only operators are very powerful - cc in, grid, and crow for cv!