Cannot Upload with com.apple.photos.background-upload Identifier

I'm building a new app that uses the new background uploads extension, unfortunately, the App Store Connect process fails with the provided EXExtensionPointIdentifier.

Invalid Info.plist value. The value of the EXExtensionPointIdentifier key, com.apple.photos.background-upload, in the Info.plist of “MyApp.app/Extensions/BackgroundUploadExtension.appex” is invalid. Please refer to the App Extension Programming Guide at https://developer.apple.com/library/content/documentation/General/Conceptual/ExtensibilityPG/Action.html#/apple_ref/doc/uid/TP40014214-CH13-SW1. (ID: a471e5e7-361c-487f-8554-9deda472b2bc)

Confirmed that both the app and extension targets are set to 26.1 minimum.

What would be the best way to resolve/fix this?

Cannot Upload with com.apple.photos.background-upload Identifier
 
 
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