Indicator 'XXXXXXXXXXXXXX': Error on calling 'OnStateChange' method:.....

[FMtrader]

Hello
For reasons unknown my copy on NT 8.0.27.1 has just started throwing up several error messages in the log screen for about a dozen of my indicators.

Indicator 'XXXXXXXXXXXXXX': Error on calling 'OnStateChange' method: Object reference not set to an instance of an object.

The errors appear during the initial startup.
So far I have removed the particular indicators and the messages disappear. If I do a fresh indicator reinstall the error messages come back.
I have reinstalled NT8 but the error messages remain.
I have done a system SFC/Scannow to detetct any windows file errors but the problem remains.
I have downloaded and run the Windows .Net repair tool but the problem remains.
I have deleted all files in the database cache, day, minute and tick repositories but that did not help.
The errors appear even if I open only a blank workspace without charts so that would suggest the problem is occurring during the initialisation of NT8.
I have running Win 10 Pro 64 bit version 22H2 OS Build 19045.2728

Any suggestion as where to look next?

[FMtrader]

Hello
For reasons unknown my copy on NT 8.0.27.1 has just started throwing up several error messages in the log screen for about a dozen of my indicators.

Indicator 'XXXXXXXXXXXXXX': Error on calling 'OnStateChange' method: Object reference not set to an instance of an object.

The errors appear during the initial startup.
So far I have removed the particular indicators and the messages disappear. If I do a fresh indicator reinstall the error messages come back.
I have reinstalled NT8 but the error messages remain.
I have done a system SFC/Scannow to detetct any windows file errors but the problem remains.
I have downloaded and run the Windows .Net repair tool but the problem remains.
I have deleted all files in the database cache, day, minute and tick repositories but that did not help.
The errors appear even if I open only a blank workspace without charts so that would suggest the problem is occurring during the initialisation of NT8.
I have running Win 10 Pro 64 bit version 22H2 OS Build 19045.2728

Any suggestion as where to look next?

UPDATE
After some hours I have been able both eliminate then re-create the issue. It appears to be associated with the installation of a new indicator package. I have emailed the new supplier and asked some questions!

[NinjaTrader_JustinD]

Hello FMtrader,

Thank you for using NinjaTrader.


Glad to hear you isolated the behavior! As always, please feel free to write in with any additional questions you have regarding NinjaTrader.