Manipulate layer attributes and set the color correctly in Editor but not Windows Build

[dun82]

My project follows the 3DAttributeSample and rewrites the shader. Everyhing is fine when debugging in the editor window but once the project is built, errors below is found. 

ArgumentException: GCHandle value belongs to a different domain
at System.Runtime.InteropServices.GCHandle.op_Explicit (System.IntPtr value) [0x00020] in <75633565436c42f0a6426b33f0132ade>:0
at Esri.GameEngine.Attributes.ArcGISAttributeProcessorEventHandler.HandlerFunction (System.IntPtr userData, System.IntPtr layerAttributes, System.IntPtr visualizationAttributes) [0x0000e] in <662af139e46c429db3d72180a9332d24>:0
at (wrapper native-to-managed) Esri.GameEngine.Attributes.ArcGISAttributeProcessorEventHandler.HandlerFunction(intptr,intptr,intptr)

Appreciated if anyone can give me a hint. Thank you so much. 

[dun82 · Accepted solution]

A quick follow-up to my own issue, it all about my careless mistake by declaring a local processor in the loop

var attributeProcessor = new Esri.GameEngine.Attributes.ArcGISAttributeProcessor();

where in the sample, attributeProcessor is a private global