Rhino Freezes when I try to save a render. Only way out is force quit but Rhino does not show in red in the applications list. Also the materials list regularly disappears. Only way to recover it is to copy and paste the model into a new model. This has been happening for some time.
I have reinstalled Version 7 (7.9.21222.15002, 12021-08-10) but results are the same.