No, but it works correctly when I’m in Front View. Try restoring the user-created named cplanes in both top and front view, and see if you get different results.
I noticed that your views are set to cplane top, cplane front etc. which made me wonder whether you had been setting views in between trying to work with your three named cplanes. If so, you may have been changing the CPlane each time you set the view. If you have ‘Named views set CPlane’ turned on, try turning it off and see if you get more expected behaviour.
I found, like Pascal a year back, that your Named CPlanes behaved consistently. I had that setting turned off. When I turned it on and changed views things became much harder to follow (but were happening as expected once you understand the effect of that setting).
I already had Named views set CPlane turned off. But now I found this advanced option Rhino.Options.ModelAid.AutoCPlaneAlignment. Changing the value to 0 seems to be fixing it for my particular Cplane issue. It’s unclear what the difference is between the first three settings tbh:
I’m also seeing this Construction Planes setting, and it seems like it must be related too. Standard makes Named Cplanes work as I imagine it should, and Universal brings the original issue back:
In my limited experiments I haven’t seen a difference between 0 and 1, but 2 is weird and, I confess, I can’t see any use for it. I leave mine set at 0.
Note the Lock and Sticky settings here too. I think these can also be a trap for the unwary.
Standard means that the CPlanes in each viewport are independent of one another. Universal means that if you set a CPlane in one viewport then it gets set in the others too. I find this is only rarely helpful, and to some extent it is superceded by the Auto CPlane features.
Auto Cplanes and Universal Cplanes are not related.
Universal Cplanes links the Cplanes in all viewports. When a Cplane is changed in one view the Cplanes in the other views also change based on the direction of the view in each viewport. If the Cplane in one viewport is changed to a named Cplane and Universal Cplanes are on then the Cplanes in the other viewports will change.
Universal Cplanes can be turned on and off in Options