User blog comment:ChocophileBenj/Create your own Candy Crush levels ! (REVIEWED TUTORIAL)/@comment-4580263-20141220173341/@comment-30095342-20141220175002

I should point out that this is known to happen on the Level 140 template if you change the caption to jelly.

Don't know about the other rooms/types, but if it happens quite a lot then it is definitely something you'll want to look into.