FYI, replacing a direct connection from a smart battery with an OR gate in between (one wire in from smart battery) automatically fixed the broken shutoff. Things started working right off the bat with no other changes.  So @flapee, not only does that design seem to not break, but updating a stuck one to your design fixes a stuck switching station.  Of course, with the new 50kw line, maybe this entire discussion is pointless. However, the problem seems to occur in other places as well.  M