Yes I tried the preferences thing, but that didn’t solve the issue.
I also tried the workaround by opening another project first, but also that didn’t help.
I spend all day trying to figure out what happened. Up until now I discovered that the backup file just before I added the Grand2 in the project still works. All subsequent efforts with files that had been “infected” by the Grand2 's appearance do not work.
So it seems to me that the Grand2 has seriously messed up something inside the project file…
Lost a week of work…learned a lot :\
Erwin