Hi Paul,
thx for your fast response.
The up-/downgrade has already happened some time ago so there is no real backup available :-(. The backup I thought to have been performed beforehand seems to be from after tne upgrade.
I have tried to set up a new installation and to copy the contents from #_sppagebuilder to the new installation site (only the contents from the text field).
As I have some professional experience with databases I would see no problem to update either the structure (if I would know the desired target design). Alternatively if the problem arises from the code side it would be very nice if you could point in the direction of the files that might cause the described problems.
Thx a lot in advance for your support.
Steffen Schulz