When that happens on my machine (Designed Topaz 20) it is because I have not put the bobbin thread in properly. It has to go in counter clockwise - and catch it on this little clip in the bobbin area - I don't have a picture - so I would suggest you check the manual to see it on your machine. I can only use Viking bobbins in my machine too, and wind them on my machine. If they are not wound tightly that will create a problem too.
Last edited by quiltingcandy; 04-16-2020 at 12:02 PM.