Thank you for your replies. I actually tried that as well. I tried adjusting my speed as I made the pivot to be both faster and slower. Strangely enough, the problem was worse when I stopped and made an extra stitch or two at the pivot.
I tried changing my needle size, and that seemed to help a little bit. I didn’t solve the problem outright, but I was using a pretty heavy needle before, and switching to a finer one seems to be helping keep the bobbin thread down and not get pulled up through the needle hole.
Any additional help or advice would be greatly appreciated!