6c not valid symbol

[FXMIKE]

Tonight for the first time I tried to pull up a chart of 6b 03-17 and I get a message that says invalid symbol. Am I missing something?

[NinjaTrader_DrewO]

Hello,

Thank you for contacting us to report this item.

So that I may investigate I would ask that you contact me by email at PlatformSupport [AT] NinjaTrader [DOT] com. In your message please include a link to this forum thread and a copy of today's trace files. You will find these diagnostic file in the Documents > NinjaTrader 8 > Trace folder. I will need to review a copy of the files which are named 'trace.20170228.XXXXX.txt'. There will likely be multiple files for each day.