Thread Prefixes - Only half working?

[Fulla]

I'm having a strange problem where thread prefixes don't fully appear in some cases.
The one I'm using in the screenshots is [Suggestion]

I Should be getting this a thread title like this:
- [Suggestion]Light, Medium, Heavy - Gun Classifications?
But Instead I get this, in some cases
- Light, Medium, Heavy - Gun Classifications?

Screenshot: Outside Thread (NOT working)


Screenshot: Forum List (Fully Working)


Screenshot: Inside Thread (Partially Working)


So how do I get it fully working?
Screenshot: A different forum, what I'd like it to look like


thx for any help