We have a Ender 3 v3SE and there is some filament stuck it appears just below the cogs in the extruder. I have tried to retract and extrude it, tried pushing it through with the needle from the top down and bottom up. Started to try and take the casing around the extruder apart but felt like it was going to be difficult to get back together (line the cogs up) as it was very stiff to try and start separating. Any help in removing this little annoying bit would be greatly appreciated.