I have used a 0.375x8 flat bar weldment and (2) 2x2x0.25 L angles to form a side frame and added some cut outs and holes.
When I change the 0.375x8 flat bar profile to a 0.5x8 bar profile it seems to rotate. How can I prevent this so I don't need to remake all of my features?
Both of the weldment profile sketches are the same, only 0.125 difference in width.
Grant,
The problem is repeatable in the part you provided if you change the weld profile. Any feature used on the flat of the 3/8" bar will rotate to the 5/8" wide surface every time you change the weld profile.
As an experiment I went ahead and created a dummy part using your 3/8" weld profile and switched between it and the 5/8" profile.
this is the 5/8:
in this part the behavior is as expected.
So to answer your question there is something in your existing part that is flipping references and profiles to create the havoc you are seeing. I am not sure what custom properties your weld profile is driving in your part, but my work around would be to resize the 3/8" to 5/8" and in this particular case do what you need to update cutlists and BOMs as needed.
Typically I only use 1 bar profile and massage it as needed to create the parts I need.
Hope this helps.