I am positively surprised that the upgrade from OH2.5 to OH3.1 was painless and majority/key bindings work as before😊. With new OH3.1 I am still on RPI3B+ and it works fine.
A problem I have found is that Dimmer items defined in .item file are not visible/available for Dimmer type channels in OH3.1 on the “item to link” list.
When I select a Dimmer type channel (ex Volume) for a thing and I want to “use an Existing Item” I can not see any Dimmer Type item on the “item to link” list.
On the other side when I select a Switch type channel for a thing I can see Dimmer items on the “item to link” list
I think that also when I create a new Dimer type item directly in OH3.1 UI such an item is not available for Dimmer type channels on the “item to link” list☹
Is it somehow configurable in OH3 which item types can be assigned to which channel types or this is a bug?