If two promise calls are consecutive, theirs then & always block never get called

[anhduyleatiheart]

viewModel.load() method:

func load() -> Promise<ContentDirectory>? {
        ...
                return .success(playlistDirectory)
            }, queue: DispatchQueue.main)
        }, queue: .main)
        .then({ obj in
            return .success(obj)
        }, always: { [weak self] in
            self?.promise = nil
        }, queue: DispatchQueue.main)
        return promise
}

View Controller method:

private func loadModel() {
        loadCancelToken?.cancel()
        guard let promise = viewModel.load() else { return }

        showWaitCursorAtCenter()

        loadCancelToken = promise.then({ [weak self] _ in
            ...
        }, always: { [weak self] in
            ...
        }, queue: DispatchQueue.main)
}

When loadModel method is called twice in a row and the promises are fulfilled, both loadModel's then & always blocks from both calls never hit the breakpoint and never get called.

View Model load()'s then & always blocks from both calls did get called though