Aggregator removing projections?

Hello everyone,

I am trying to write data into an SQL Database which contains multiple geometries (This is borehole location data containing the originaly measured location (point), a corrected location (point) an a borehole path (linestring)). After creating the geometries from fields and using a GeometryPropertySetter for each of these geometries I am using an Aggregator followed by a MultipleGeometrySetter-Transformer. This is working more or less as in 3 Geometries are in fact written into the database which then also contains 3 fields with SQL geometries as set by the 3 GeometryPropertySetters. 

But there seems to be a problem. Between setting the individual geometries and aggregation, all info on the previously set projections seems to be lost. Upon inspecting each individual GeometryPropertySetter all points are where they should be. Inspecting the following aggregator shows all points off bounds somewhere. It is my understanding that the aggregator should simply collect the input data but not change anything. 

Does anyone has any ideas what could be going on here?

Thanks.