MultiCharts: Trading Software for Automated Trading and Backtesting

I have developed a strategy that works very well in testing.

But in live trading it opens the position and closes it automatically in the coming bar.
Is there a function that I have overlooked in the strategy setting that triggers such a thing?

Maybe the log can help

How did you do your testin?
Back test? or Forward test? Real time Papertrading account?

a backtest, the code was created with Adaptrade Builder

If this is a coding question, you will need to post your codes.