<Indicator> could not be deserialized?

[cassb]

Can someone help me with this error message?

[NinjaTrader_Bertrand]

cassb, does it only happen when you add / remove this indicator?

Have you tried this in a fresh workspace file without any templates / indicator sets applied?

[NinjaTrader_JoshP]

Please also check the indicator's code that it has proper serialization of its objects.

[cassb]

Please also check the indicator's code that it has proper serialization of its objects.

I don't know what that means, but it's not happening any more, so ignorance is bliss at this point. ;-)