auto chart scroll stops sometimes--why?

[known]

I'm running NT7. Occasionally, my charts stops scrolling over automatically with the days action and I must manually scroll over to the instrument's/day's current price--often, once this happens one time, I have to continue doing it throughout the session. Why does this happen (am I doing something wrong?) and what can I do to set it back to auto scroll? Thank you.

Edit: If it matters, I'll note I'm using candlestick bar charts (15 minute, 10 minute, etc), with an indicator or two, and although I occasionally enter drawing tools onto the chart, this happens whether I do or don't.

[NinjaTrader_Kyle]

Hi known,

Thanks for writing in.

The next time this occurs, please look for a 'F' button in the upper right side of your chart. Clicking that button will return the chart to automatic scaling which should clear this issue.