I'm not sure if this is a bug, per se, but it's annoyed me for the last few years. When trying to preview a long post, only the top 1/3 of the page is visible - and not all formatting actually appears in the preview. I tend to make a ton of random typos and errors in posts (especially long ones), so it's always a bit of gamble as to whether I'll have to rush to edit something after I post, haha!

I'd love a scrollable preview, at the least!

This is something I can confirm is fixed! (since like... October haha)

You can lock it :)