Im currently upgrading a customer from QV10 SR3 to 11.20 SR7. The problem is that some of the applications simly wont open in QV11.
Most of the documents open fine but a few of them (Load) simply wont open. Wne i try, i get an error message directly that says: "The document xxx faild to load". This happen in every relase of QV 11 (Including 11.0 IR). But it works in Qv 10 SR6.
there are no Section access in any of the applications and all of them have GUI in them.
I have also tried opening with the "/nodata" option. But it seems to be related to the GUI so it still fails.
It seems that there is a incompatibility anywhere ... Try to save these apps with /nodata in qv 10 and then openning in qv 11 (make BACKUPS before ! - you could loose some variables/expressions). If this worked you could try to localize it further but it could be the easier way to create these apps new - the most things you could simply copy/paste.
Sheets couldn't be copied but with ctrl+A & ctrl+C and then ctrl+V it's quite easy. Unfortunately you couldn't so easily copy variables, actions, groups and so on - if you used many of them it could be worth to read and write these per macro - there are postings about it here in the community.
Recently I had a maybe similar case. An app worked within the fat-client and but not in access point (failed to open) and after a longer search and rebuild a new app which also failed I discovered the reason as a variable-expression for a dimension-group ... therefore I think that there is still anything in your app.