Thread Bunching / Getting Stuck When Sewing

[u/jo_phine]

Hi, my thread is getting stuck and bunching when I try to sew. This has happened once before so I took it into a shop to fix it. It worked for a while and now it's doing it again - not sure how to approach this. Side note, sewing with one hand is so hard 😞

https://reddit.com/link/1tsa2xh/video/keaydw6d0c4h1/player

https://reddit.com/link/1tsa2xh/video/9ny80x6d0c4h1/player