not familiar with bike terminology, so sorry if this doesn't come across well. My bike will make a loud clicking noise and the pedals will give some resistance when I pedal whilst standing up. If I sit down it is perfectly fine. Shifting down to lower gears allow me to stand up and pedal with no issues whatsoever. It's hard to see what exactly is going on when the only time I can get the issue to occur is when I'm standing up on the bike.
Hope someone can help me out!