Not really. Since my event was brand new I deleted it and the associated
message, remade it from scratch and it was good to go. If your event has
been in use and has history tied to it then this approach probably
shouldn't be done. Our adobe consultant told me to open a support ticket
if I thought it was due to the upgrade and didn't really offer any other
insight. Since starting over was an option for me, I didn't open a
support ticket.