Migrated from rPi4 to rPi5, Zigbee2Mqtt works but not entities in HA?

I just migrated from a rPi4 to a rPi5 (using another ip adress), using a cloud backup. It went quite smoothly, and after changing to the new IP and moving the Skyconnect USB to the new rPi5, I can control the zigbee devices using zigbee2mqtt on the new server.

However, all MQTT entities in HA are greyed out… what am I missing? I’m using Mosquitto broker.

(I’ve shut down the old server btw)

Not working, in HA:

Working, in Zigbee2MQTT on the rPi5 HA instance:

Edit: Ok, I just realized the MQTT integration points to the old IP address. Can I change this somehow w/o losing my settings/devices?