Hue dimmer ihc?

I’m trying to link a hue dimmer with my ihc dimmer, that i didn’t think that i would need a rule.

I have my items

Dimmer bad_lys “Bathroom light” [ “Lighting” ] {ihc=“0x24b75d”}

and then i linked bad_lys to my Hue light Brightness.

but when i turn on ihc dimmer light the hue does not follow, but in openhab i can see the dimmer change from zero to what i set it. does it need a ekstra kick to turn on/off or what ?