Did something happen to the chart rendering calculation between 8.0.26.1 and 8.1.1.7

[QuantKey_Bruce]

The strange thing is that it's not producing errors all the time, it seems to only happen when volatility picks up and NinjaTrader gets a lot more to do?

That makes it sound like maybe a race condition or something they're done incorrectly with the threading.

[WHICKED]

What do you mean using the cached version? You mean calling them and then storing that information in a variable?

And if they did cause this by some threading issue or a race condition --- that would not be shocking. They still have not updated their system to take full advantage of the amount of cores that CPUs now have and yet STILL have threading issues?

Personally - NinjaTrader 7 was THE BEST of NinjaTrader - stable and performant. Now.... its a mess

[WHICKED]

As well - i try catched all the methods calling Instrument or TickSize and it still does the scaling issue. So that did not resolve the issues

[WHICKED]

and..... ninjatrader

**crickets**

[NinjaTrader_Emily]

If you create a indicator that updates or slides in the future a draw object and attach a indicator such as Cummulative delta or even CumDelta (https://ninjatraderecosystem.com/use...ulative-delta/) from your Ninjatrader Ecosystem website - what appears to happen is that the new panel that the indicator is displaying on (below the price chart) will 'flicker' but will resize the y axis and then will 'update' after the fact causing what looks like a flicker but it is just the chart having an issue with chartscale.

Hello WHICKED,

Thank you for this description.

Have you only experienced this behavior when working with a draw object in the future? If possible, please provide a sample script that I may test on my end along with the exact steps to reproduce this behavior. I would be glad to test it on multiple versions. I am also curious; are you seeing exceptions thrown like EB Worx has mentioned? Do you only observe this behavior when volatility picks up, or are you able to consistently reproduce it?

I look forward to your reply.

[WHICKED]

Hello WHICKED,

Thank you for this description.

Have you only experienced this behavior when working with a draw object in the future? If possible, please provide a sample script that I may test on my end along with the exact steps to reproduce this behavior. I would be glad to test it on multiple versions. I am also curious; are you seeing exceptions thrown like EB Worx has mentioned? Do you only observe this behavior when volatility picks up, or are you able to consistently reproduce it?

I look forward to your reply.

I have experienced this issue regardless of future drawing or sliding a draw object.

As others have mentioned - I have seen the exceptions being thrown from time to time when using Instrument or TickSize. As well, others have mentioned that its when volatility picks up - that is not the case for me - it could be slow and the issues still arise.

It exacerbates if you use something such as TickRefresh on the charts as well.

As mentioned - if you use the https://ninjatraderecosystem.com/use...ulative-delta/

or using https://ninjatraderecosystem.com/use...ntum-for-nt-8/

On none time based charts - there is a scaling flicker.

I am not sure what your other two vendors are using to reproduce their issues - but they are having the same flicker issue. You MIGHT want to ask them as well.

[NinjaTrader_Emily]

Hello WHICKED,

Thank you for your reply.

At the moment, my focus is to get a reproducible scenario on my end. Since you are the original poster, I would like to get that information from you if possible. Then I will take into consideration what everyone else is reporting as well to try and narrow down the potential cause. I have tested (on version 8.1.1.7) both of the indicators you linked, and I am unable to get a flicker on the new panel that is created. I tested on the ES 09-23 on a 150-tick chart with 3 days to load. Please provide the exact steps to recreate this behavior:

• What instrument symbol (and expiry, if applicable) do you have selected?
• What interval are you using?
• How many days/bars to load do you have on the chart?
• Are you simply adding these indicators to the chart with the default settings, or do you modify any of the settings? If you modify the settings, what are you changing them to?

It would also be helpful if you are able to get a video that shows what happens when you follow these steps. That way I can actually see the behavior that I am looking for when following the steps to reproduce.

I look forward to your reply.

[WHICKED]

Hello WHICKED,

Thank you for your reply.

At the moment, my focus is to get a reproducible scenario on my end. Since you are the original poster, I would like to get that information from you if possible. Then I will take into consideration what everyone else is reporting as well to try and narrow down the potential cause. I have tested (on version 8.1.1.7) both of the indicators you linked, and I am unable to get a flicker on the new panel that is created. I tested on the ES 09-23 on a 150-tick chart with 3 days to load. Please provide the exact steps to recreate this behavior:

• What instrument symbol (and expiry, if applicable) do you have selected?
• What interval are you using?
• How many days/bars to load do you have on the chart?
• Are you simply adding these indicators to the chart with the default settings, or do you modify any of the settings? If you modify the settings, what are you changing them to?

It would also be helpful if you are able to get a video that shows what happens when you follow these steps. That way I can actually see the behavior that I am looking for when following the steps to reproduce.

I look forward to your reply.

NQ
Range 1, 2, 3, pretty much any NON time based bars (Unirenko, etc)
3 days
Default settings

[WHICKED]

and perhaps Quant key or the other vendors can chime in with their setup as well.. since they are a vendor.

[koop1975]

Hello WHICKED,

Thank you for your reply.

At the moment, my focus is to get a reproducible scenario on my end. Since you are the original poster, I would like to get that information from you if possible. Then I will take into consideration what everyone else is reporting as well to try and narrow down the potential cause. I have tested (on version 8.1.1.7) both of the indicators you linked, and I am unable to get a flicker on the new panel that is created. I tested on the ES 09-23 on a 150-tick chart with 3 days to load. Please provide the exact steps to recreate this behavior:

• What instrument symbol (and expiry, if applicable) do you have selected?
• What interval are you using?
• How many days/bars to load do you have on the chart?
• Are you simply adding these indicators to the chart with the default settings, or do you modify any of the settings? If you modify the settings, what are you changing them to?

It would also be helpful if you are able to get a video that shows what happens when you follow these steps. That way I can actually see the behavior that I am looking for when following the steps to reproduce.

I look forward to your reply.

I'm having the same exact issue as well.

ANY instrument when there is speed. (NQ, ES, RTY, YM)
ANY non time-based charts.
I've tried 1 day, 2 days, 3 days, 5 days, etc.
Default settings, and every other setting.

It seems to be easily reproducible and I personally know that several others have emailed NT support regarding the issue, and even provided video of it happening. Clearly SOMEONE at NT has to know what changed!

[Pitro]

Hello WHICKED,

Thank you for your reply.

At the moment, my focus is to get a reproducible scenario on my end. Since you are the original poster, I would like to get that information from you if possible. Then I will take into consideration what everyone else is reporting as well to try and narrow down the potential cause. I have tested (on version 8.1.1.7) both of the indicators you linked, and I am unable to get a flicker on the new panel that is created. I tested on the ES 09-23 on a 150-tick chart with 3 days to load. Please provide the exact steps to recreate this behavior:

• What instrument symbol (and expiry, if applicable) do you have selected?
• What interval are you using?
• How many days/bars to load do you have on the chart?
• Are you simply adding these indicators to the chart with the default settings, or do you modify any of the settings? If you modify the settings, what are you changing them to?

It would also be helpful if you are able to get a video that shows what happens when you follow these steps. That way I can actually see the behavior that I am looking for when following the steps to reproduce.

I look forward to your reply.

Same Issue here too

ANY instrument, when there is speed its more apparent but appears also when its slow (NQ, ES, RTY, YM)
ANY non time based bare
It doesnt matter how many days I pick
Stock settings and modified

I have been on the emails with NT tech support for days now showing the negative decimals along with the chart flickering but it bears no fruit.

I hope this gets the attention it requires.

[koop1975]

I forgot to mention the decimal issue that Pitro just brought up. What would cause the bid/ask data to have this negative repeating decimal in the new version of ninja that was not there before. Maybe this is related to the flashing issue.

[Pitro]

Same thing here, with indicators loaded or with blank chart

[atindriyadas]

Hi there, im having the same error as WHICKED and koop, can you fixed pls?

[QuantKey_Bruce]

That large negative number you're seeing displayed is double.MinValue - an indication that ask and bid are not available. Whatever is displaying that needs to be updated to recognize double.MinValue and show N/A or -- or "Unavailable" etc.