I set “hide from ui” on wrong entility in the hass.io GUI. And now I edit the entility and remove the attr and save, but its still remain when go back and check.
Any idea how I can fix this so this light gets back on my dashboard?
I had the same problem once. Turned out I had the entity twice in the customize.yaml
How do you ment you solved it? I tried to add the light to customize.yaml and set the attr “hidden: false”. But didnt work. And it caused that the customize-page in hass ui couldn’t load the attributes of the entitiy.
My problem occurred because I had the light.entity_name at the beginning of the file, and then again around the middle of the file. The last one had "hidden: true, which overruled my hidden: false in beginning of the file.
But it seems that your problem is different than I thought
I think so too. My customize.yaml dont include anything now about that specifik entility. But it still say “hide in gui” in the customize section in the GUI 
@yabbah Was this solved? any ideas? I’m facing the same issue
Thanks
Update:
I override it by adding hidden: false in customize.yaml (although there wasn’t any hidden: true… )