@kaas said:
Idisable 'redefine thumbnail on save' in 'model info - file'.
Saving is instantly again in any display mode.
Well saving here took really like 5-10 minutes (on 2xSSD in RAID0) with a model of 10MB (but with lots of detail).
With your tip it's saving within a second. Great tip and you're my hero of the day. I'm not sure what 2014 does but it really seems a bug in SU 2013.
Thanks!!