Honnestly I have never see and never used this feature in phoscon.
It’s not just something that list your DDF ?
The last change on the DDF is the add of “state/alert”, you can check if you have it in your device json.
Hm, there is no “state/alert” in DDF.
In which way I can check without gui which DDF is used?
With logs deCONZ command line parameters · dresden-elektronik/deconz-rest-plugin Wiki · GitHub
I m using generaly 'info"*2 but in this situation can use “DDF”