Trouble encoding CapturedRoomData with JSONEncoder (used to work)

Hello,

I used to be able to encode CapturedRoomData using JSONEncoder with the code below:

    // Encode CapturedRoomData
    func encodeRoomData(_ roomData: CapturedRoomData) -> Data? {
        print("#ECRD1 - Data: \(roomData)")
        do {
            let encodedRoom = try JSONEncoder().encode(roomData)
            print("#ECRD2 - Encoded: \(encodedRoom.description)")
            return encodedRoom
        } catch {
            print("#ECRD3 - Failed with error: \(error)")
        }
        return nil
    }

A few weeks ago I noticed this approach is no longer working. The encoding fails and I get the following error printed:

#ECRD3 - Failed with error: invalidValue(RoomPlan.CapturedRoomData, Swift.EncodingError.Context(codingPath: [], debugDescription: "Invalid data", underlyingError: nil))

Can anyone help me find the root of this problem?

For reference, here’s what the printed CapturedRoomData looks like (with the keyframes omitted):

#ECRD1 - Data: CapturedRoomData(keyframes: [...], coreAsset: <RSAsset: 0x283988bd0>, arFrameReferenceOriginTransform: simd_float4x4([[0.9995456, 0.0, 0.030147359, 0.0], [0.0, 1.0, 0.0, 0.0], [-0.030147359, 0.0, 0.9995456, 0.0], [0.38664898, 0.93699455, 0.38685757, 1.0]]))