outE() not showing edge in cross-logical-partition query

Question

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I have two vertices in two different logical partitions, (both have different partition key values). I have created an Edge between them. Now when I run the outE() on the source vertex, it returns null, while when I run the inE() on destination Vertex, it returns me the edge with outV as the source vertex.

These are the gremlin queries for the same,

g.addV(‘vertex_label_1’).property(‘id’,’V1’).property(‘pk’,’pkX’)
g.addV(‘vertex_label_2’).property(‘id’,’V2’).property(‘pk’,’pkY’)

Add Edge:

g.V(‘V1’).has(‘pk’,’pkX’).addE(‘edge_label_12’).property(‘id’,’E12’).to(g.V(‘V2’).has(‘pk’,’pkY’))

Now when I run g.V('V1').outE() -> it returns null while when I run g.V('V2').inE() -> it returns the above edge

I am not sure what am I missing here ?

Ref: https://learn.microsoft.com/en-us/answers/questions/1286272/how-to-add-an-edge-between-2-vertices-in-different