I have a 2009 FLI filter wheel, CFW-2-7. It is connecting via USB and is visible on the system, and in fact it gets a good ways through the connection process before crashing. Here are the last few lines output by kstyars before crashing:
org.kde.kstars.ekos: "FLI CCD is online."
org.kde.kstars.indi: FLI CFW : "[INFO] Connecting to FLI CFW..."
org.kde.kstars.indi: FLI CFW : "[INFO] Filter wheel is online. Retrieving basic data. "
org.kde.kstars.ekos: "FLI CFW filter is online."
QObject::disconnect: Unexpected null parameter
I have only specified FLI CFW as the filter device. I have never set any properties, like number of filter slots or names of filters. I could not find any place in the UI to do that. Maybe this is a simple problem.
I am now watching the entire universe rebuild from source on my Mac. Hopefully I will be able to test tonight as well. I am brand new to the community and the underlying frameworks. Plenty of learning curve ahead.