SMS Messaging stopped working yesterday after an update
I have a 27" iMac running macOS 10.15.4, just updated yesterday. Randomly, following that update, I can no longer send SMS messages from my desktop at all. I have checked the settings on my phone and can clearly see that this machine is still selected/approved for "Text Message Forwarding" so I should still be able to send and receive but neither is working. It is only allowing iMessages now from other Apple users, no regular SMS will work. How do I fix this? I really don't even know where to start.
iMac Line (2012 and Later)