In trying to reproduce this error, I tried to open the Delfland.damx but that complained abou the missing mdb. So I (re-)added this file (it was there in the DSG-version of Dam so I do not know why it was not copied; Maybe this should be reviewed more as I see a lot of other files too that were/are part of the DGS version bu ar not in this version).
Related to Issue [
MWDAM-970]