London Trader 

is there a way to replay calendar spreads...?

@ London Trader, no idea if this could be useful, just a couple of notes I saved long ago re spreads on NT7.

1__ Fat tails : “Search the indicator section of the NinjaTrader forum. Then look for "Spread" in alphabetical order.

2__ https://nexusfi.com/ninjatrader/32374-how-plot-spread-between-cl-crude-oil-futures-contract-08-14-cl-crude-oil-futures-contract-09-14-a.html#post421055

Does anyone met the same problem with crashing of market replay in NT7 when running a strategy?

bjarne 

Does anyone met the same problem with crashing of market replay in NT7 when running a strategy?

I have seen it crashing if you use the date sliders.
When does it exactly crash ?

It seems it crashes when there is action I trade with renko bars and it looks difficult to follow this action.

bjarne 

It seems it crashes when there is action I trade with renko bars and it looks difficult to follow this action.

try to put part of your code in comments
and then gradually activate parts,
this might help you to locate the issue or understand where it exactly blocks

alternatively, you can put 'print' statements in your code
you can then follow the output on your console
to understand what is happening and
up to where it's ok

Thank you for your comments.
I made the code in the wizard iam not a coder, I will look on Google how to integrate your suggestions. Thanks

bjarne 

Thank you for your comments. I made the code in the wizard iam not a coder, I will look on Google how to integrate your suggestions. Thanks Ries

Then it sounds that most likely it is one of the indicators that crashes your NT

Yes it was. Did not see the problem, but was right in front of me
thanks for your help