1. It is very complicated and it is hard to reproduce the problem without your solution. Could you, please, provide us with a small runable solution which reproduces it?
2. The SqlGeospatialDataReader requires to use the GeospatialPropertyName property. It must define the name of the wkt or wkb geometry property of the class you use for collection. I have attached a small sample solution. For more information please take a look for the Wkt Geospatial Data Reader eaxmple and the following documentation topic:
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