This issue occurs when the mount is preposition to the object before starting Scheduler. When scheduler starts it reports parking is off, etc and then calls Align, Scheduler enters a wait for Align loop. Align takes an image, solves the image and identifies the object is within range. Scheduler does not recognize Align has finished and remains in an infinite wait state.
I've been tracking down an issue recently that sounds very much like this one. The problem I've been having is that I can't reproduce the issue on the Simulators but a couple of folks have reported scheduler hanging on their equipment.
Anyway, I merged what I hope is a fix yesterday, so if you able to build from source, if you build the latest kstars, hopefully the issue is fixed. If you still get the error can you post up a log with verbose Align, Capture, Scheduler & Focus set and I'll do some more investigation.