I have added a column validation in a single line text to have minimum characters. I created a nintex form and everything seems to work, I put less than the minimum and I am supposed to get an error saying "Must have 8 characters or more" but i am getting "Sorry something went wrong, please try again" and it is not highlighting the column section as it would when you have a required field.
Validation i placed is:
1: =IF(LEN([Column Name])>7,TRUE,FALSE)
or
2: =LEN([column name])>=7