There seems to be a problem, at least with the current version for openHAB 3.4.2
See
and
for reference.
When a thing with vdr addon is active, there is an error Message in the log each time the Items list is loaded (e.g. in VS Code openhAB plugin):
[ERROR] [al.ChannelCommandDescriptionProvider] - Dynamic command description matches original command description. DynamicCommandDescriptionProvider implementations must never return the original command description. class org.openhab.core.internal.types.CommandDescriptionImpl has to be fixed.
If stopping the bundle, the errors are gone immediately.