I am trying to fix a form developed by someone else which is throwing some errors. I finally hunted it down to something within the SerializedInputTypeRegexPatterns (see image). However anytime I make a change to this field, it is not being saved. Does anyone have any experience with this area who can maybe shed some light as to why changes wouldn't be saved? It's not as if I am getting an error message, it just doesn't save.
Any help would be much appreciated.