Fatal problem with GUI for dvdauthor

[LogicDeLuxe]

When I click on "Create Batch" or "Create DVD" I get the following error:

Run-time error '35601':
Element not found

This happens on a particular project file, which I made with 0.83 but after upgrading to 0.89, the error remains.
Is this a bug in the GUI or is my project file broken? Any chance to get this fixed?
My file, in case this helps: http://www.gratissaugen.de/files/gs1.gfd

I used GUI for dvdauthor for month now and it works great, until now. I hope this can be fixed.

Windows 2000, Athlon XP 2600, 512 MB

[Borax]

Is this topic still open?

[LogicDeLuxe]

I had to do my project from scratch and it worked then. I have no clue what caused the error in my old project file nor have I instructions to reproduce this. I suspect it is or was some bug in the GUI. It didn't appear another time, at least.

[Borax]

OK. If you should encounter the problem a second time, just send me a note.