Problems with Apple mail on MacBook Pro running Ventura 13.3.1 (22E261)
I am using Apple's mail service, Mail Client 16.0 (3731.500.231) on a MacBook Pro: Apple M1 Max, RAM: 64 GB, OS Ventura 13.3.1 (22E261). Software is fully up to date. I have almost daily issues where I start looking at mail, everything is O.K., but then I open a message and the content is blank. When this starts, it happens with every message after that. Leaving the message open to see if it populates later rarely helps, even when open for hours. Internet is AT&T and is blazing fast - the constantly overdeliver from the bandwidth I've subscribe to.
The only solution is to reboot the computer which fixes the issue for hours or the rest of the day. Some days I need to reboot more than once. This happened with the last OS I was on as well, which was Monterrey, where I also had this issue. I waited 3 months to upgrade to Ventura, I usually wait 6 months from release for an OS upgrade to wait for a couple of 'updates' to fix issues.
MacBook Pro 16″, macOS 13.3