Default [Q] Subtitle display issues

I'm having issues displaying subtitles I've encoded with Handbrake ver. 0.9.9 (waiting for update)
Specifically S Trek 7, 8, 9, & 10 text commentary track and BTTF 1, 2, & 3 with animated trivia text.
Most I've encoded had standard text tracks and no issues.

Any help would be appreciated.