Cannot Decode "ResourceLink" Content Types in Swift SDK (Sync API Fails with dataCorrupted)

[mertvardar]

When using the Swift SDK to perform a Sync API call, the response includes content types referencing "ResourceLink". On iOS, the SDK fails to decode these fields with a dataCorrupted error indicating it “Cannot initialize FieldType from invalid String value ResourceLink.”

This only occurs when using the iOS Swift SDK. The same token and sync configuration work without issue on Android. Also, I can fetch the content types via Postman successfully, suggesting the data from the Contentful API is valid, but the Swift SDK isn’t handling "ResourceLink" fields.

iOS Version: 18.3
Contentful Version: 5.5.13
Xcode Version: 16.2

[Contentful] Error: dataCorrupted(Swift.DecodingError.Context(codingPath: [ArrayCodingKeys(stringValue: "items", intValue: nil), _CodingKey(stringValue: "Index 2", intValue: 2), CodingKeys(stringValue: "fields", intValue: nil), _CodingKey(stringValue: "Index 1", intValue: 1), CodingKeys(stringValue: "type", intValue: nil)], debugDescription: "Cannot initialize FieldType from invalid String value ResourceLink", underlyingError: nil))