bug in fixture file

Hello,

We use a Nano Hog 4 for our productions with the latest library file, last week we did a try out with our new fixtures, Infinity IB-2r (19 ch mode) and the second prism (channel 13) did not work. We spend 4 hours trying to fix this but with no luck, when we used a ETC smartfade to control it directly it worked, but not with the hog. Is it possible there is a bug in the fixture file?