Hi Experts. I haven't had this happen before -- not sure if I was just lucky or what... A client kept getting the above error (not consistently) when changing fields in a bound form.
After much hair pulling I got rid of it by eliminating default values in a sub form -- some fields had them hard coded in the form itself, and others were dynamic and had to be changed in code.
I know I've used them before and can't for the life of me figure out why this is happening...
Any idea? What was I doing wrong?