FortrezzMIMO2+ auto OFF doesn't work

I have a site where they are using this device and it seems that the auto off doesn't work anymore?

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I just had to retire my MIMO2+ for the same/similar reason. It started a few months ago, and I set up a piston to turn it off if “latched” for five seconds. Then it got to the point where it would latch in the on position after a few cycles of the contact sensor opening/closing - and I’d have to wait a bit to turn it off.

Finally, I just retired it and replaced it with a Zen17.

But t must be a change in HE that is stopping it work though, it worked fine for years now they all stop working?