I’ve not had any similar issues with mine, sorry.
Give it a really good close look from behind and see if there’s any bend of out-of-straightness of the sprockets concerned.
check for any burrs or damage.
check the chain and jockey wheel for any still links or crud.
see if moving the chain really slowly (a workstand will help) you can replicate the *chk* or noises…
alternatively make sure it’s well lubed and go ride it in.