ASS engine needs Dialogue lines to be in chronological order

Dialogue lines are not being rendered if preceded with another dialogue line with a higher timestamp.
The only exception is the case when they are on different layers (attached file "non_chronological_script.ass" shows that behavior at 0:03:57.02).

Cutting out lines 46-115 of "non_chronological_script.ass" to produce "fixed.ass" with dialogue lines in chronological order allows the remaining lines to show up correctly.

According to the Sub Station Alpha v4.00+ Script Format specification:
"4. SSA does not care what order events are entered in.
They could be entered in complete reverse order, and SSA would still play everything correctly in the right order ie. you cannot assume that each dialogue line is in chronological order in the script file."