Lost unicode zero width space in upgrade (u200B)

as of version 5.4 I believe, I had successfully used unicode character U+200B to tell the app where I wanted sentences divided when the font size is increased. Since then, this character will no longer divide the sentences where I have placed it. I have been forced to replace that character with a simple space (I’m already using u200A for the audio sync, so I can’t use that one.)
I tried a few other unicode characters and was unable to get the word-breaking functionality while not having an actual space inbetween the individual words. As the language I’m working with lends itself better to phrase based spacing, I really would like this feature back!

Please help!

Also, I’m noticing that the app still crashes (albeit infrequently) I can reproduce this myself only by resizing the font by pinch zooming.

Thanks for making this product, people are really making good use of the apps I’ve created with it!

Jim