My problem seems quite the same: On two computers, shortly after installing SW 2016 SP 1.0, I have the same or very similar issue.
Normally I open a template and draw my parts on the template. But the new scale pop up is crashing SolidWorks. For me it doesn't seem to matter what I try, letting it attempt to auto scale. I have taken for granted the auto-scale function, so this does give some appreciation along with the frustration. I often create new drawings from many different sizes of parts.
Manually scaling is my only workaround for now. I must guess at an appropriate scale, or perhaps the scale that SolidWorks would default to for the given part, by size.
This is a known problem:
Fixed in:2016 SP02
Sub-Area:Drawing Views - Drawing Views Gener
Summary:Drawings – View Generation: Crash after placing drawing view with warning 'The sheet scale has changed ……'
I found this problem on day 1 of using SW2016. It seems to happen almost exclusively when using files that were created in previous SolidWorks versions. I've found that if you insert a view from the left-hand menu (which usually displays when creating a drawing from a model) the sheet scale message displays and SolidWorks crashes. If you skip placing a view from the left-hand menu and instead insert a view from the View Pallette (in the right-hand side of the screen) then the issue/crash does not occur. NOTE: you will have to refresh the views in the View Pallette for the correct model.
Hope this helps
Thanks gents - I'll be looking forward to SP2.0 and see how it goes.