Board Thread:Support Requests - Designing Your Wikia/@comment-25343201-20160127191942/@comment-5558012-20160127192350

See Thread:981190 for details.

Edit: If I linked you here, you can read the details on this post and thread instead of clicking the above link.

This old Wikia bug affects users with 1366px wide screens (may be other sizes too, but it doesn't affect 1920px+ users if the window is full screen) and has been around for more than two years now (there are at least seven or so threads in this very forum about the same issue). Zoom out to at least 90% (may need to go further) before entering the preview screen and then publish. If you still can't publish the edit, your level two is indeed too wide and you need to shrink the length of the text in it.

Also, don't forget to bug Staff telling them they need to fix this problem.