I think I must have PM'd you that version as the latest on Github Pre-Release is 1.5.0 AFAICS?
I am running an alpha version1.7.2 (in production) at the moment which incorporates code from my Z-Wave_Interpreter plugin as oppose to doing its own thing to interpret the Z-Wave commands coming in from the TRVs and Remotes. I could let you try it BUT you would need to be able to fall-back to your current version if it goes pear-shaped. I haven't had many issues with it but that is not to say you wouldn't flush something out if you tried it.
Ok. Downgraded to current GitHub release and still see same behaviour. It restarted at 20:20. I then adjusted the temp with UI and 2 of the devices went to mode 2 but then straight back to 3 and 4.