Playback - Failed to call "Add" method

[NJA_MC]

I got the following error during playback:
ERROR: Failed to call 'Add' method: An item with the same key has already been added.

This is consistent on my system and is done this way:
1) Download "Market Replay" for the ES 12-15 contract from 09/14/2015 -> 09/18/2015.
2) Setup a Playback "Market Replay" from 09/14/2015 -> 09/18/2015.
3) Add a chart with BOTH of the following DataSeries
- 1 Min (ES 12-15)
- 1 Range (ES 12-15)
4) Start playback, I used MAX and it took a second or two but error was thrown and RANGE series disappeared from chart.

ATTACHED: Screen shots of before and after

[sledge]

I was able to reproduce.

[NinjaTrader_DaveI]

Thanks guys -- I can reproduce, as well. I'll get a report submitted today so we can investigate the cause.