I experienced something similar, but not by having the persist_features setting set to true only, but in combination with setting show effects_list to true as well.
Setting effects_list to false allowed me to have other features persist, and the card to function normally.
I suspect it has to do with the recent core frontend update to using MWC web controls, and custom cards needing to change how they use text inputs and dropdowns. I thought of posting an issue on the card’s GitHub, but hadn’t got round to it as noone else seemed to be seeing this - perhaps you could open an issue there, and I’ll add my experience?
Did you open the issue against home assistant or the light entity card? Because if it’s an issue with the light entity card, then you should be here or on the light entity card github page, not home assistants github page.
EDIT: I See you did write it against the light entity card.
Hello, I am trying this plugin, but if I add a card, it only shows the name, no controls, no RGB-wheel or anything, must the controlled light have any special settings? It is identified as a RGB-light (see yaml for the light under)
I have a fibaro RGBW installed and manage to made this card and color picker wheel work.
What I don’t understand is the effect_list.
I see things come by with Rainbow, colorloop, Fireplace, LAPD etc. but how to get those effects so I can use them?
The effect list I can make visible but of course nothing worked when set a value as rainbow or colorloop, random.
I had the same problem - light-entity-card installed successfully through HACS, but when I tried to use it by manual entry it would show the same error. Restarting HA container helped, and light-entity-card started appearing in card select, and I was also able to use it with manual entry.
I tried your approach to add the nice gradient background to my colour temperature slider. But unfortunately, I can’t get it to work.
What I did:
I installed lovelace-card-mod via HACS:
I added the following in configuration.yaml:
frontend:
themes: !include themes.yaml
# While card-mod can be installed as a lovelace resource, some functionality will benefit greatly from it being installed as a frontend module instead.
# https://github.com/thomasloven/lovelace-card-mod
extra_module_url:
- /www/community/lovelace-card-mod/card-mod.js
themes.yaml contains nothing but:
default:
# Nice BG for color temperature slider
ha-slider-background-light-entity: 'linear-gradient(90deg, rgba(165,201,241,1) 0%, rgba(255,255,255,1) 50%, rgba(254,151,7,1) 100%)'
When i have persist_features=true i have the bug that the Light can’t be switched off , even through the Card’s own switch. If i turn persist_features off, the Switch works normal again and the light can be switched on and of. I use the Version 5 of the Card Addon