My filament has been giving me problems. When I print something, it works for about an hour, then stops. It isn't jammed, and when I take it out, the tip of the filament is twisted. I am printing with an Ender 3 with BBLife filament off of amazon. My temps are 225 for my nozzle, and 75 for my bed. Does anyone have any possible solutions? One that I found that might work, is buying a new extruder, because the old one is getting worn out. Is this a good solution?