Duplicate rule not firing with data loader batch size of 200

 Duplicate rules does not compare data within same batch of record. So only option is to set batch size equal to 1.

 Invalid cross reference id using process builder

When you develop the process in a sandbox you are providing the name of the group or queue and the process builder links it to the internal ID behind the scenes. Unfortunately the IDs are typically different in your dev org and production org.

 To fix this, after you deploy, you will need to modify the process (clone) in the production org and re-link the queue by name in the prod org so it gets the proper ID. When you activate the cloned version, it should work as expected.