Do you have a full message and/or stack trace for this? If the name lookup is failing you would expect to see the same message as https://community.jboss.org/message/795305
The fix for https://issues.jboss.org/browse/TEIID-2368 will be in shortly if you want to retest against latest or Beta2 should be out ~ Feb 11.
There is no other exception or error message in the server.log except the one I posted:
01:04:53,093 WARN [org.teiid.RUNTIME] (teiid-async-threads - 1) TEIID50036 VDB testvdb.1 model "testds" metadata failed to load. Reason:null
Since in this case, column name is null, the "getColumnByName(columnName)" just throws some exception I did not think teiid handles it.
Yes, the TreeMap will throw an NPE and we end up swallowing the stacktrace. https://issues.jboss.org/browse/TEIID-2368 corrects both the missing/null column and ensures that the stacktrace should be displayed for any similar errors.