I was wondering if anyone has come across this, or whether someone can replicate it.
I've been banging my head against a brick wall all morning trying to figure out why my formatting rules weren't working.
Turns out they were, but I was only previewing the form in the App and Rule changes weren't being implemented, although other controls I added and changed were.
Once I save the form (not publish) and then Preview it again, the rule implements.
Can someone else replicate this issue? If so I'll report it to Nintex Support.
I'm on O365, developing a form for the Mobile app in tablet mode and specifically I'm dealing with formatting rules, although it may apply to validation rules too I guess.