Hi Pete,
I understand your concerns and would like to let you know that while we do curate we do understand that not everything will work for everyone. If you purchase a submission that either doesn’t function as intended or does not appear as advertised in the screenshots or videos you are welcome to reach out to us here for a refund: marketplace-support@unrealengine.com.
We do ask that when you do you provide us with details about the problems you’re experiencing. We do also reach back to the seller with each of these issues with feedback on what they need to resolve. Please rest assured that sellers who do not support their products are subject to removal from the Marketplace. If you ever have any questions please let us know.
Thanks,
Stephanie