Pro Site status has expired on sites set to permanent Pro Status


I have several multisite installs using the Pro Sites plugin, each with Blogs setup as templates and set to have their Pro Status as permanent.

This morning I received several emails from each of my installs notifying me that the Pro Site status had expired for all my template sites.

I search this topic and found a few others have had this happen. Is their an official fix or explanation as to why this occurred?

Thanks, Chris