Hello @rubdos and Whisperfish team and thanks for you work.
I encountered an interesting “feature” of Whisperfish. I installed the latest alpha from openrepos and linked my number. It worked just fine, I had a couple of direct conversations and one group conversation, which was created by an android user (this was obviously the legacy type group). After a while I wanted to try the android app, which meant that whisperfish was de-authorized, and when I returned to Whisperfish, I had to delete the databases and start from scratch.
I initiated direct conversations with two of the people of were in the previous group conversation, but the group conversation was not visible anymore. I suspect that the group was updated to v2 when I used the android app.
Anyway, the direct messages worked just fine, but interestingly, when the members of the group conversation posted messages in the group, I received these messages in the direct conversation with the poster of the message, as if they were sent directly to me. My messages worked as they should, meaning they were not sent to the group.