Conversation with more than one person no longer possible ?

Only a few months ago, I was able to start a conversation with multiple members.
Now if I want to do that again, or invite a third person to an existing conversation, the recipient input is only restricted to one entry.

How can I get round this ?


Thanks in advance,
Patrick
 
If you have started the conversation then you should be able to invite more.

If however the other person started it, they have to tick the box to allow you to invite others.

Screenshot from 2023-03-03 13-05-14.png
 
So if I now, e.g., have to have 10 separate conversations with 10 different members, instead of one common one, would this jam up my "mailbox" ?
Is there a limit to the size of the "mailbox" ?
And if yes, can I clear that by leaving a conversation permanently, or how else to do it ?


Thanks,
Patrick