WHD upgrade 12.7.8 causing emails from old tickets

We recently upgraded from 12.7.6 to 12.7.8. After performing the upgrade, we began to receive emails generated from WHD regarding old closed emails.  It is a slow trickle of these and there doesn't appear to be a reason why this is occurring. All these tickets are closed and are several months old.  Has anyone ran into this issue?  Is there some place we I can see what tickets are generating notifications and maybe put a stop to it? 

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