K2 plus filament cutter not cutting

[KGS_Engineering]

I had this same issue, I came to the same conclusion as some in this thread, that the cutter rod was not moving far enough into the extruder to actually cut off the filament all the way. I am not a coder, so I turned to a hardware fix. I posted my fix in another related thread here:

Filament cutter dull as sin

I had this same issue. At first it was intermittent; the filament would cut most of the time but occasionally would not cut all the way and then would jam. A couple of weeks ago, the issue got worse to where it would not cut at all. After many attempts and disassembling the extruder multiple times, I noticed it appeared that the cutting blade was not pushing far enough into the extruder. I don’t know what may have caused this, but I’ve recalibrated several times after patches etc. and this did n…

Basically, I made a spacer to let the cutter rod reach further:
Creality Cloud -K2 Plus Cutter Rod Spacer From KGS_Engineering

Edit: Creality is reviewing my upload on their site so I also posted to Printables
https://www.printables.com/model/1234165-creality-k2-plus-cutter-rod-spacer