On My MacBook Air, using Messages, there is a single text chain which will not allow me to respond (i.e., there is no text prompt to type within). A few notes:
- All of my other macOS and iOS devices allow me to participate in this text chain. That includes my MacStudio, my iPhone, and my iPad.
- All fours members of this text chain are using iOS devices.
- All other text chains are working per normal. I can respond to any of the others.
- My MacBook Air is running Sonoma 14.5.
- I've logged out and back in to Messages, tried the Sync Now button many times, and deleted the chain (and waited for it to reappear when another participant added to it)--all with no fix.