Confirmed its working again here. (Well, for 4 local nodes and 1 local gateway).
I’ll have to power cycle most of my (remote) nodes to force them to do a join accept. Presumably they still have old session and network keys which are no longer valid, since I changed to meshed-handler. (These ones I haven’t built the daily confirm uplinks into. They are happily sending data to the gateway, and don’t know anything is wrong.)
I also had a minor hiccup with Integrations. Not only were they destroyed by changing to meshed-router (simple to re-configure), but also the payload functions were destroyed. (No decoded payload data being passed to HTTP integration.)