Sovol Direct Drive Extruder Problems

What is it with Sovol direct drive extruders, I’ve loaded 2 filaments without issue, the 3rd filament won’t go through? I’ve had the same problems with the left extruder on the SV04 and now a brand new SV07 is displaying the same problems. Why do I not get these issues on my Bowden printers? Anyone know of any more reliable DD extruders that are compatible with the SV07 or the SV04?