setClosure Error 400 No such command

[cloudhoster]

Gateway: 9165
Device: WindowCovering > Eltern

States
close

Since the last update of the Tahoma Box to version 1.21 my old RTS windows coverings cannot be operated anymore in HomeKit. All window coverings using IO protocol still work fine, but five old ones using RTS do not work anymore (performed without any issue before).

The RTS devices can still be operated in the new TaHome app, but in Homebride the following error occurs:

Polling error - socket hang up
setClosure Error 400 No such command : setClosure on device rts://1228-9252-9165/16721931 (rts:ExteriorVenetianBlindRTSComponent) (UNSUPPORTED_OPERATION)

It seems linke the plugin / Tahoma Box can not handle the RTS position properly anymore. Interestingly in the TaHome app the RTS devices do not show a status (open / close), while IO devices certainly do.

Any idea what's the issue here and is there any fix for it?

Thanks & kind regards
Ingo

[pseudonym2]

Same error here, also tried an entire reinstall of homebridge and the plugin without success.