I’m really confused - has something changed recently (since September) with particle subscribe/publish?!
I made a TINY tweak today to a Photon I have here at home translating Particle Pub/Sub to MQTT (basically adding in a single new command) and that caused some of the existing translations (which have been stable for a year+) to go screwy. So I rolled back the change to my last known working config, going back to the year old config, and now that doesn’t work either?! Truly bizarre.