بسم الله الرحمن الرحيم
Under Raad al kurdi's recitation on the mobile app for surah nisa, from ayah ٨٥ to ayah ١١٣ if I am not mistaken, the audio is swapped for another random reciter and it is for a quite a long duration. Perhaps it is because at that time there were no recitations of Raad Al-Kurdi for those particular ayat but I think that now there should be at least a few complete recitations of his for Surah An-nisa. I am not sure if it is any big problem but just letting you know والله أعلم جزاكم الله خيرا