Mute on Entry Pop Up Message Suppression

We've been connecting our H.323 systems to Zoom meetings for 5 years, and in the last few weeks have noticed the Mute on Entry pop up message no longer disappears automatically. The mute on entry setting has been on for the meetings, and has not been changed on our end.

The message below used to disappear within 30-60 seconds after connection, but now it never goes away. I've dug through the settings looking for something to auto suppress this, but either missed it or it doesn't exist. Is there any way to fix this?

Image of the message - https://imgur.com/a/EdP2f3u