doc.Objects.GetObjectList() returns a Null obj

doc.Objects.GetObjectList(4294967295) returns a Null object?
getallobjects.gh (26.1 KB)

if i use in ids.Add(rhObj.Id)
i get a shift from ID to the other attribute arrays
also i would like use System.Collections.Generic.List in all the attributes (color,name,layer,locked,visible) but could not find how