Start time of subtitle gets incorrectly modified at runtime

The time field of a subtitle is incremented incorrectly at runtime. This is caused by the wrong array being modified by the subtitle manager when queuing subtitles. A fix is provided by the licensee.

1. Create an actor that plays an audio file when you press a key and stops it when you release that key
2. Add a subtitle to the file
3. Press the key a few times.
4. Observe the Time field for your subtitle. It will be incremented with each play