Request to all people posting an issue / problem in this topic / here on the forum
Due to the transition of the Homey software version (Homey v4 Stable and Homey v5 Experimental), it is essential to be complete in your problem statement, to enable other active community members to provide the right support without having to go through multiple question - answer iterations.
Homey SW version: Homey v4.2 / Homey v5-RC … (mention RC version explicitly)
App version: v0.8.0 / v1.1.4 / … other (CLI installed)
Zigbee network reset: Yes / No (after update to Homey v5)
Problem experienced: (as detailed as possible)
Steps taken to resolve the problem: (as detailed as possible)
Please also check the steps described by @Dijker in Fixing disconnected Zigbee devices (without having to modify all flows)
