That's an interesting idea. I haven't tried to suppress diagnostics and efile with it.
I'm in CA, with only one NJ client at the time that's already filed and done.
I found out from a FB group (Lacerte Rescuers!, highly recommend) that this was a system update. Didn't find out more details than that, but it suggests that Intuit doesn't deem this a glitch to be fixed. Ugh!
I would call Lacerte Support on this to either troubleshoot or get this raised up the flagpole for an enhancement request to try and fix. I'm sorry you're having this roadblock come up for you now.