If you want to go from a negative angle to positive angle in the Degrees input box by deleting the “-” sign, the radian value stays negative. You have to make a change in the value to get it to change the “-” sign in the Radian field. I rotate facets back and forth a lot when building a simplified molflow model from scratch using an imported CAD STL file as a template.
Simplifying a CAD model…
Hello Alan,
I can’t reproduce this 
I’ll reply to your other messages, of which I didn’t get notifications, sorry
I just tried it yesterday and it seemed fine. These inconsistent bugs are hard to find!
Hello Alan,
Since Roberto could also reproduce this, I looked more into this and figured out that this happens when deleting selection with the Backspace key (which is more common on Mac laptops…). The delete key or simply the backspace (without selecting the - sign) worked well, hence it was hard to spot.
A fix will be in the new version. Thanks for reporting!
Marton
On a Mac it’s just the Delete key, but it behaves like the Backspace key on a PC. fc+Delete on a Mac is equivalent to the PC’s Delete key.