How to add a KaKu dimmer

[Snowdude]

I have a Kaku dimmer and when I learn it on the remote I see it appear in domoticz too as a type Light/Switch, AC, On/Off.

When I click on edit and change the type to dimmer the dimmer slider does not appear. Doe I have to create this manually or do I run in to a bug?

With the kaku remote it is working perfectly

[Raspberry Piet]

Must be a bug in Domoticz.
I just copied domoticz.db from 3.8972 to a fresh install with 3.9389.
In the older version the slider is present but not in the version with latest beta.
Problem is with devices Type: Light/Switch AC,Dimmer

edit: solved with update to 3.9415