Board Thread:Support Requests - Designing Your Wikia/@comment-25343201-20160127191942/@comment-25343201-20160128102641

I diligently followed your link and followed that one and the ones after that, so I thought, "since they've already done the hard work finding these, I may as well hit the wikia staff with them, so they realise it's still a regular problem for people."

The fact that it happens on 1366px screens (very common on cheaper laptops and tablets) makes this a pretty high priority bug in my opinion. Oh well, maybe if enough people send in bug reports they will get to it one day.

Not sure why they don't just remove the code. Leave a message that warns about menus being too long, but doesn't actually prevent you from editing it!

Also, got a present for ya! It's a CSS hack to work around the bug. It just makes the preview window wider (and as a side-benefit, the keeps the classic editor window wider for longer). It's not elegant, but it works.

https://userstyles.org/styles/123609/wikia-com-bug-fix-navigation-preview-error