Win 64 8.1 Update 1
Rhino Version 5 SR8 64-bit
Was building a simple model from cylinders and disks and 1 ellipsoid. Some transparent textures, 1 Neon viewport. Unsaved file.
Not sure exactly what I was doing (probably texture related) but the accompanying Crash Dialog suddenly appeared. The buttons in the dialog were clickable but the text fields, though showing a cursor, did not accept keyboard input.
I was still able to get the dialog to create a ResinMinidump.dmp file (very large!)
and also a RhinoCrashDump.3dm file (small), which contained the original model.
… will send them along upon request.
Upon restarting Rhino, no backup file was offered, but Rhino itself appears to behave normally, including opening/editing RhinoCrashDump.3dm.