Share .mp4 video to Instagram via Android Intent

Android 4.4.4, Instagram 9.7.5

-> adb shell pm list packages -f
...
package:/data/app/com.instagram.android-2.apk=com.instagram.android
...


-> adb shell pm dump com.instagram.android | grep -A 1 MAIN
intent={act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] flg=0x14008000 cmp=com.instagram.android/.activity.MainTabActivity}
realActivity=com.instagram.android/.activity.MainTabActivity
--
  android.intent.action.MAIN:
    65143b78 com.instagram.android/.activity.MainTabActivity filter 64ff3d90
--
      Action: "android.intent.action.MAIN"
      Category: "android.intent.category.LAUNCHER"

Android 7.1.1, Instagram 9.8.0

-> adb shell pm list packages -f
...
package:/data/app/com.instagram.android-1/base.apk=com.instagram.android
...


-> adb shell pm dump com.instagram.android | grep -A 1 MAIN
android.intent.action.MAIN:
  3d2eec5 com.instagram.android/.activity.MainTabActivity filter 770faff
--
    Action: "android.intent.action.MAIN"
    Category: "android.intent.category.LAUNCHER"
--
privateFlags=[ HAS_DOMAIN_URLS ]
dataDir=/data/user/0/com.instagram.android

ShareDialog.java

  public void startInstagram(String mediaPath) {
    final String INSTAGRAM_PACKAGE_NAME = "com.instagram.android";

    try {
      File media = new File(mediaPath);
      Uri uri = Uri.fromFile(media);

      Intent share = new Intent(Intent.ACTION_SEND);
      share.setType("video/*");
      share.putExtra(Intent.EXTRA_STREAM, uri);
      share.setPackage(INSTAGRAM_PACKAGE_NAME);
      startActivity(share);

      // startActivity(Intent.createChooser(share, R.string.chooserTitle));
    } catch (Exception e) { // Instagram package not present on device
      Toast.makeText(getActivity(), R.string.instagramRequirement, Toast.LENGTH_SHORT)
        .show();

      try { // Prompt to install Instagram via Google Play
        startActivity(new Intent(Intent.ACTION_VIEW,
            Uri.parse("market://details?id=" + INSTAGRAM_PACKAGE_NAME)));
      } catch (ActivityNotFoundException anfe) { // Prompt to install Instagram via browser
        startActivity(new Intent(Intent.ACTION_VIEW,
            Uri.parse("https://play.google.com/store/apps/details?id="
              + INSTAGRAM_PACKAGE_NAME)));
      }
    }
  }

Following Instagram's video sharing Android Intent. Trivial edit to bypass a chooser and launch Instagram directly.

Kit Kat device works as intended, however Nougat device falls to L20, launching Play Store, as if Instagram isn't installed.

On both devices L14 of ShareDialog's startInstagram() does present a chooser of video-sharing capable apps, including Instagram.

Related code for sharing an image with this same approach works as intended on both devices.

Output from L15 Exception

E/ShareDialog: e.getLocalizedMessage >> file:///storage/emulated/0/870_90.mp4 exposed beyond app through ClipData.Item.getUri()
E/ShareDialog: e.getCause >> null