Installing from instant app fails with white screen

Question

I use this code from my instant app. I expected that I will get some functional prompt that will install the app. But it shows some white dialog that is thin and tall but not functional

I have no idea how to proceed, can you share your experience how do you install the full version from instant app? I found the code at this documentation, and I adjusted for my package etc. https://developer.android.com/topic/google-play-instant/getting-started/instant-enabled-app-bundle#test-publish-internal-test-track

 private fun showInstallPrompt() {
        val postInstall = Intent(Intent.ACTION_MAIN)
                .addCategory(Intent.CATEGORY_DEFAULT)
                .setPackage(your-installed-experience-package-name)

        // The request code is passed to startActivityForResult().
        InstantApps.showInstallPrompt(this@MyInstantExperienceActivity,
                postInstall, request-code, /* referrer= */ null)
    }