Sound like exactly the same issue. Though for me setting refresh to 0 still makes the clock jump around/stutter.
I've gone down the route of using a python script to set the system clock to the GPS time using GPSD which works fine. I am ok just running this script when i first log on and my astro-sessions are never more than a few hours so I shouldn't need to re-sync.
Hopefully this bug can be fixed soon.
Hi, I have an interesting issue when using a GPS dongle with INDI/KStars on Astroberry/RPI3.
It connects find and gets a fix when you look in Indi Control Panel when things are started and gets the correct location and datetime.