Bug: Chat will not allow me to message everyone once I receive a message

[AirtightEng]

I've been having an issue during zoom meetings for my paid account. When someone messages me (I'm the meeting host) in the chat, I can no longer message everyone. The default switches to messaging the person who just messaged me, and when I try to change the setting to "everyone" in the drop-down it remains stuck on the person who messaged me. 

This seems like a software bug to me. Is anyone else experience this, and do you have any solutions. It didn't used to be a problem, but in the last 6 months or so, it's been happening on both of my zoom accounts after Zoom installed a software update. I'm running on Windows 10 on a PC.