I just copy-pasted from your comment above and used that as a json. Blinking is ok, it worked before but it doesn’t pick it up now when I try to add it as a switch.
I run it on a headless RPI3, so by default I don’t see the logs.
I used this post How to get logs? to get logs while I tried to pair it:
17:13:55:359 /root/.local/share/dresden-elektronik/deCONZ/config.ini exists and - Pastebin.com