I don’t know if this is related to any other fault, but I am having trouble with the bend command
The left hand bend is fine, but the right hand bend has suffered severe distortion. I get this fault regardless of which side is bent first. The fault has also occurred on plate work with no features (cutouts) on the plate. I did not have this fault with the old version of Rhino. Bending is along a duplicate spine, in this case the plate is 5mm thick and the spine length 4mm.
Bending the plate in the opposite direction does shifts the fault to the opposite bend.