Well, question: Why min/max -1 (this cause the error, nothing to solve on my end).
Remove the min max values, and the curtains should move as you are used.
Here is a an Share Your Device Example (with tefs, you can import this from the templates during AVD creation):
Share Your Device! - Advanced Virtual Devices from Device Capabilities - Apps - Homey Community Forum
But
Perhaps what you want is to install the current test version (latest, just updated a minute ago).
It has full Reflection and Reaction, you can directly map devices to AVD fields in the settings, instead of using flows.
Here i mapped the device “Keuken gordijn”.Curtain directly to a NumberField2, React is set to update the properties of the devices, but when the AVD is changed through it’s own input, not the devices (else it could create a one-timeloop (useless).
When the Curtains are opent, it is shown on the AVD; when you change the AVD field, the curtains get updated.
No more need for flows.
