Thanks all, for the feedback!
@Raul I think the bug you report is related to this API issue I ran into before. Thanks, I`ll take a look and sort out a workaround.
https://forum.renoise.com/t/lua-meta-devices-routing-to-current-track-return-1-as-value/44659
(API reports :
......:device(X):parameter(X).value_min
of 0 for some properties that can also return -1 . This is different from the usual issue of Lua counting from 1 and renoise values counting from 0 )