I am facing couple of issues while developing Sci chart applications, need possible solutions

I am facing the following two issues related to application crash and unable to perform 3d object rotation in release mode.

Issue 1: Application Crash
I am using PointLineRenderableSeries3D object to render the Data series points.
I have a timer which ticks every 1 sec and have new data series points with some rotation of previous values.
Hence will try to add new points on every 1 sec to the same object data series

timer1.tick +=(() => {
// rendererUpdate is object of PointLineRenderableSeries3D

        using (rendererUpdate.DataSeries.SuspendUpdates()) 
            {
              var newData = GetNewPointsWithRotation( rendererUpdate.DataSeries, 30);//30 is angle of rotation for older points
                rendererUpdate.DataSeries = newData;
            }

}

Issue 2: When i run the application in release mode, i am unable to perform manual rotation using mouse dragging for the 3d sphere FreeSurfaceRenderableSeries3D object SurfaceMesh referred in the code.
When the application is running in release mode , i tried to drag rotate the 3d shape, but the 3d object is not responding to the mouse drag event (Press hold mouse left button and drag).

The attachment contains the wpf code (xaml and cs) in the same file.
Code refers .jpg file, Please refer any local jpg file to repro the issue.

Please suggest the possible reasons and fixes of the same.
Please provide the possible insights of the same.