im using OH over raspberry pi3 ,esp8266 using MQTT after upgrading to v2.4 nothing is working
i tried to clear cache and tmp also allowed legacy and installed mqtt1 , unistall mqtt-bindings and install it again
every thing was working well before upgrading
this an example for what i got when i try to connect my window sensor:
[WARN ] [b.core.events.EventPublisherDelegate] - given new state is NULL, couldn’t post update for ‘WindowSensor5’
my home.items:
Contact WindowSensor5 “Window [%s]” {mqtt="<[broker:abdullahHouse/security/WindowSensor5:state:default]"}