Flat pattern base view for sheet metal won't go onto drawing - clicking OK gives red box

[mhag33tg2]

Trying to add a flat sheet metal pattern to a drawing but the base view will not appear or stick onto the drawing as it normally does.  If I just click onto the drawing anyway, no base view drops in as it usually does, but the OK button in the dialog box activates, then if I click OK I just get a red box on the drawing.  

While in the same model, some other sheet metal part flat patterns successfully went onto the page as normal.  I can't see why this is working for some flat patterns but not others.

This non sticking base view and red-box-instead problem has happened for several other models and drawings, so

not isolated to my current model.   Any suggestions to resolve?

See screencast:   https://autode.sk/33NK3Yx

[TheCADWhisperer]

What happens if you click Finish Flat Pattern?

Can you File>Export your *.f3d file to your local drive and then Attach it here to a Reply?

[sanjana.shankar.goli · Accepted solution]

@mhag33tg2 

Closing the drawing and open it again. Now try to add the flat pattern to the drawing. This should resolve the issue.