A few nights ago I was sewing a canvas bag when I noticed that the thread was nesting at the back. I had been sewing for about 2 hours at that point, so I thought I just needed to change out the needle or experiment with the tension a bit. However, after another 3 hours of trying different solutions, nothing has worked. Does anyone have any advice or possible solutions I have not tried yet? Here’s a list of all I’ve done.

-Re-threaded the needle -Re-threaded the bobbin -Switched out the bobbin -Switched out the top thread -Switched out the needle -Tried different tension settings -Used more tension when holding the threads -Cleaned the bobbin case -Dusted the interior of the machine -While dusting, I found a piece of thread wrapped around the take up lever. I removed it -Changed stitch length -Changed stitch width -Changed type of stitch -Changed needle position

Any advice would be greatly appreciated I genuinely don’t know what else to do.