Thank you for your feedback.
Other users have reported a workaround for issues with Google Messages: Please go to Settings > Connections > SIM Card Manager > Turn your active SIM Off then back On.
If the issue still persists, please use the latest Samsung Members app and send us an error report immediately after experiencing the issue from the Samsung member’s app -> Beta Feedback -> Error Reports to help us debug the issue.
We apologize for the inconvenience and appreciate your contribution to the beta program.
One UI Beta Team