@Yves – and be aware of a new introduced bug affecting the "afc.db" file.
Building all folios anew would be wise using your sidecar.xml files.
Hopefully you have a sidecar.xml file for every folio.
yes I work for my "official" projects with the sidecar.xml. I'm a little bit old-school in creating my folder structure, what must not be a bad thing ;-)
My test environment has no sidecar. But I don't realy need it for this files.
But I will let the users in the German hilfdirselbst.ch forum also know of this bug.