Running T3 Build 21919 and we are unable to control 4 SlimPar T12 USB (8 channel or 3 channel) fixtures. We have validated Universe, Address, cables, etc. However, outside of vista using the same future settings via DMXcat, we are able to control them. Anyone have any suggestions?
Try patching as 3 dimmers in 3ch mode and running those channels up one by one.