Dual storage table in aggregation model

Hi all,

I've been trying to get my head around this problem for ages.

I have a simple model set up where I am testing composite model and aggregations features. I have a sales fact table in direct query mode which is about 300m records. I have an aggregated sales fact table of about 30m records which is in import mode, and I have a product dimension table which has about 500k records which is in dual mode.

I have set up the aggregations and everything works fine in desktop.

As soon as I refresh the model in the service I have issues where not all of the records are being matched against the dimensions from the product dimension  table.

I am wondering whether it is due to the volume of data, but I thought that was the point about being able to use aggregations with large volumes of data.

Hope someone can help or shed some light. I've attached some screenshots for reference.

Thanks

Mike

Model in desktop - most of the net value assigned to a departmentModel in service - most of the net value IS NOT assigned to a department