Thunderbird update snag

There's a new update for Mozilla's Thunderbird email client to v102.0.

After the update installs and you click a message listed in your email account's inbox to open any newly downloaded or previously downloaded/read emails - surprise! - the messages may be totally blink (in a fully formatted T'bird window). 

Don't panic.  Exit T'bird and restart it. If messages are still blank, reboot the PC and try again. It may take one or both of those actions to make the messages magically appear.

I had to do both before things got back to normal...