OpenVPN clients disabled after an update? Read this
I fixed a problem with how OpenVPN clients were handling their "disabled" option, which led to some very inconsistent behavior. Half the system thought tunnels were enabled, and the other half thought they were disabled. This lead to tunnels being off at boot, and at various other times when they should have been enabled.
I fixed the problems with the interface, but as a side effect any of your existing tunnels will appear to be disabled after you update to a snapshot with these changes. All you need to do is uncheck disable and save, then it should all be OK.
If you upgrade from 1.2.3 after this point, you should be safe also.