That's the same line as I show above, but in the minified version. If you could put a breakpoint there and figure out what the value of aC is (or thisField in the non-minified version), we might be able to figure out what's happening.
The other thing that would help is if you can identify which field is causing the problem.
M.
The other thing that would help is if you can identify which field is causing the problem.
M.