commerce1_order:total_price: CommercePrice input array is invalid for destination 'total_price'

Problem/Motivation

migrate_message_commerce1_order is flodded with this log commerce1_order:total_price: CommercePrice input array is invalid for destination 'total_price' when trying to migrate orders from D7 to D9.

Steps to reproduce

On your new D9 setup, add the required $databases['migrate']['default'] details to link the D7 DB as the source. Once verified, execute the following code:

drush migrate:import commerce1_order --execute-dependencies

Earlier, I was having the same issue with my custom migration created using the existing commerce_migrate migration. I thought that this is due to my custom migration, but after executing a fresh migration using the provided commerce1_order migration, the same error is happening, hence posting this issue here.

I'm marking this as "major" since a data loss is happening due to this issue!