Keep losing resistance lock on multiple profiles

[styx66]

I'm running into the issue where I lose my resistance lock on multiple profiles.  I use a large number of different atomizers, and have found I dislike the auto-adjusting cold ohms feature of the board, as I keep having to adjust my temp setting.  So I have decided to lock everything.  However, randomly I'll notice a drop in power and lo and behold my resistance lock is gone.

Using e-scribe 1.0.35.2.  Trying to find my firmware version but not sure how.

Thanks