One of my students just ran into a possible issue. Rhino 8 in Windows. On first use, Orient on Srf has both Uniform params and Angle params available. But when the command is executed a second time on the same object, those params are greyed out. I was able to duplicate. Discovered that when the project is saved and then reopened, Orient on Srf is fully functional again. But again on second use not all functions available.