Linear FS20Z-1 not working


At some point in the last several months my Linear FS20Z-1 stopped working reliably. The relay doesn’t hold. So when I turn the switch on, I can hear it click click click it seems to not be able to hold its latch. I don’t know if the switch itself has gone bad or if its something in an updated device controller, which I think SmartThings v2 prompted me to upload it which I did, which maybe is not functioning correctly?

Anyway, I would like to just replace this switch but it seems hard to get. So I was going to replace it with something else like MIMOlite but then I have read about issues with ST compatibility with v2. Any suggestions for getting this one working or what to replace it with? Thank you everyone.