WORKAROUND
Go to Tools > Options > Database > MySQL
Choose “MySQL ODBC 5.3 (ToadDataPoint5.4) (64 bit)“ or any other 5.3 version
Click ok and try to make a cross-connection in the Query Builder between a TIC object and an object from any other data source.
Run a query.
Get the results without an error
STATUS
Waiting for a fix in a future release of Toad Data Point