Errors; position and angles of negative objects

When editing negative objects positions I get spurious responses. Tried to lower and object from initial position to 5 mm above plane, got 50 added to the height. Tried rotate the object 15 degrees Y-PLANE, got changes in all 3 planes! see images. Occurs in latest versions of Bambu Studio 1.9.5.51 and 1.9.7.52.
Mac OS 15.0 , iMac 27" 2019.