Seeing “No matching certificate found” error in your log. So seems the issue is with cert, make sure you have separate certs for each DC if you have multi DCs. Try to install the X.509 certificate in Personal folder in IQServices server.
Do you have LB for IQServices? If so, make sure you are referring the LB in Source settings and referring the correct cert in IQService server by using -m option. Also make sure you have installed the IQServices with TLS option.
Try to run the aggregation and if it is succeeded, then it will narrow down the issue to IQService servers.