I successfully created a physical table and view using texttable.
I can query it.

I then manually created another view to a different file and it kept failing with a very ambiguous error when I tried validating.

ERROR: Error in parsing of sql - null

I then created another view with a diff name of the 1st view using the same copy/pasted transformation.. it too resulting with the same error:

The auto-generated view verbiage that was created and that I re-used was:

SELECT
A.OldWAC, A.NewWAC
FROM
(EXEC SourceModel.getTextFiles('wac.txt')) AS f, TEXTTABLE(f.file COLUMNS OldWAC string, NewWAC string DELIMITER '|') AS A

You can also clone the automatically created object, copy the transformation, clear the transformation, paste back the transformation and it too fails with the same error.

ALSO if I deploy the 1st physical and view models to a vdb I can execute the view transformation that fails in designer fine from squirrel getting data returned.