I am working on clearing out some persistent Workflow instances (with the help of Laserfiche Support). There are 3 instances I have not been able to Resume or Delete that give the error message "Workflow with id "###" not found in state persistence store.". 

I'm posting this in case anyone comes across this error in the future or if you already have and know how to fix this issue so the instances can be deleted. If I am able to get past it, I will post the resolution here.

We are running Workflow version 11.0.2306.898.