I'm getting this error when running a lookup via an ODBC driver. No details are reported in either Workflow error logs or elsewhere.
Both Workflow and the ODBC driver in question are 64-bit. Workflow version is 9.2.0.167 (designer).
One odd thing I noticed is that table names appear twice in the dropdown list in Workflow. See the attachment.
I did some Google searches and found that this is a .NET error that might occur if an integer value is too large (link). Although I can't think of why that would be an issue here.
Has anyone seen this before?