App rejection because of __SwiftValue

Hi, Our Flutter + Swift iOS app was rejected under Guideline 2.5.1 citing usage of a non-public API:

Runner Classes: __SwiftValue

From our analysis, __SwiftValue appears to be an internal Swift runtime type automatically generated by the Swift compiler for Swift–Objective-C bridging. It is not referenced in our source code or by any third-party frameworks and only appears in the compiled Runner binary.

Has anyone encountered this rejection before? Is __SwiftValue considered a private API by App Review, or is this a known false positive?

Are there any recommended build settings or mitigations to avoid this flag?

App rejection because of __SwiftValue
 
 
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