This has happened three days in a row now.

I write something using quick reply. Click "Post quick reply" , cloudflare askes me to verify I'm a human, I check the box, it thinks for a couple of seconds and then goes to a blank screen. When I restart VBF the post isn't there.

Luckily, I can use the post autosave and it restores the post. Then when I save the post it works fine. Never had this issue before.

I'm using Chrome.