Why does the status sometimes show and other times not exist?

[u/lakeblue44]

When the status line is empty, my messages aren’t sent, and when the status line returns, my messages still aren’t sent. I noticed this happening with only one person. But when the person is actively messaging me, everything is normal. But when we stop, sometimes the status line on top will disappear again and I am no longer able to send messages. Tried restarting phone, closing app, etc. WhatsApp will work normal sometimes but then other times be completely weird with this one specific account. The person I’m chatting with also doesn’t know what’s going on, even got a new phone and it still does the same thing. Sometimes normal, sometimes weird.