DF 18.0 b4, using default CK for this release.

Studio -> Menu Database -> Connect to Database Tables...

Select a DB2 datasource, proceed select a new table (not in the current filelist), next.

I got this error:
Cannot open 1 table on the backend.
Cannot Proceed: There are no valid tables to process.
This particular table has xml fields, but I also tried to re-Connect to existing tables and I also get the same error.
The interesting part is that for the existing tables (tables that are already in my filelist), they were converted from DF to Db2 using the Builder conversion.
So they are nothing special, but I get this error even for those tables as well.

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