I'm working through a v7-13 migration. There is an issue whereby custom properties on core media types aren't making their way through the migration. I have two completely custom media types which are being generated correctly, but modifications to the core Umbraco media types (namely 'File' and 'Image') aren't being migrated.
When I run the migration packer on the v7 site and import that into the v13 site and generate the uSync migration config files, I can see in MyV13Site > uSync > Migrate > migration_data_2024_09_04_090552 > data > MediaType there is a folder called 'file' and another called 'image', and in their respective 'def.config' files it looks like the custom properties/tabs are there. So this looks as expected.
However, looking in MyV13Site > uSync > Migrate > migration_data_2024_09_04_090552 > migrated > MediaType, there are only 2 config files in there - relating to the two custom media types. I was hoping to see configs for the 'file' and 'image' types also.
Does anyone know what's happening here and how to resolve it such that custom properties on core media types are successfully migrated?