Hi Ronnie,
Not sure if it will help but I had a similar issue and in my case I found it was that I had included the word 'set'. It was tricky to find as commenting out the line didn't help as it seem to still check and fail.
In my case I was just trying to display the work in a column heading, in this case 'Not set' so for me it was easy to change.
Regards
Garry