This may not be related but I had issues with using 9.0.1 binaries.
I was finally able to track down the 9.0 binaries for all.
I am using an offline depot.
Still had package issues but then I realized that I still had 9.0.1 binaries uploaded to the holorouter and 9.0.0 binaries in the offline depot.
I also had the metadata in the PROD folder from the 9.0.1
I redeployed the router and uploaded 9.0.0 binaries to it. Uploaded all 9.0 binares to the offline depot including the metadata and it few from there for me.
It completed successfully.