This is what the cloth object looks like on frame 57:
And this is what it looks like on frame 58:
The problem goes away when I turn off self collision, but it causes self intersection. How can I fix it?
williamatics Try increasing the Quality value in the cloth physics settings. I recommend increasing 1-2 values and resimming till it doesn't explode anymore.
Also you can try to increase self collision distance. Sometimes that will solve exploding cloth sims for me.