New hue bridge, reinstalled all devices but flows which use hue rooms don't work anymore

I have upgraded my hue v1 bridge to a v2. I have reconnected the bridge to homey and reinstalled all devices, which are working fine in flows.

I have however a few flows where I turn on all lights in a specific room. But these flows do not work anymore, even after I have selected the room again in flow. Any idea’s anybody?