Frequent, intermittent "hangs" after update to 1.4.5

Don’t move this back to Bugs please. It was moved to Help because it doesn’t follow the template, or provide enough information to reproduce.

You should start by trying to follow the troubleshooting steps:

The debugging steps can help, too. Still stuck? Delete this line and proceed.

Things like updating your installer, plugins, and testing without theme/snippets, etc. (Some of which I see you already tried.)

(Definitely happy to try to help. But Bugs need to follow the template.)