Yes, exact same issue. I opened a case with Ruckus, they had me re-install 9.2.00.168, but the issue continued. RMA issued for both devices (root & non-root). Seems very odd to me that the issue occurs with both of them.
I hope to get the replacements up this week.
I'd be curious to hear how your issue was resolved.
I never bothered to open a case as it's happening on probably 80% of our gear. It does't effect the operation of the radios and an RMA of all our radios would not be financially viable. I never noticed it happening on 9.0 firmwares.
We just get good at remembering the passwords to the radios 🙂