I'm a beginer also.. My guess would be hand position need a look at. A finger or nail may be dragging a string when lifting off. When you lift off your fingers they should pull off at a 90 degrees angle..
If your looking at the strings, cut down your peek at them. This would cause your fretting hand to roll away from a proper position. Possibly you are fretting the adjacent string and getting a Pull-off effect..
Make sure your nails are short.
Best I can do. You'll get better info befor the days out. People here love to help.
Compart1