Hey!
Repro of this is quite hard to do, myself... iirc, that fix in the changelog was something I found myself and wasn't reported by a member of the community, so... it could potentially be the same fix. I believe I added another array length check somewhere to make sure the length of the info array never exceeds the hyphenedText string.
Either way, if this happened in v1.9.1, I won't be able to fix it unless it's still happening in the latest version, so... please upgrade if you can! Please let me know if it still happens, a detailed bug report like this will help me fix the problem quickly.