Messages stop coming: Waiting for this message. This may take a while.

[open-sudo]

This is a strange issue that I don't know how to reproduce. My Java code is running normal Whatsapp. While talking to a Whatsapp Business, all the suddent they stop receiving messages from the Java client with error message: Waiting for this message. This may take a while.

The Java client is able to receive requests from the Whatsapp business client. But responses are not sent back. Restarting the java client did not help.

Only thing that seems to help is delete the cobalt store and restart the Java client.

Has anyone experienced this?

[open-sudo]

The weird thing is that sometimes when this happen, I can receive message on the mobile device (this case iPhone) while I get this error message on the Whatsapp web client.

[open-sudo]

I had the issue again today. This time it happened on the mobile phone which could not receive messages while the web could receive messages.