If you are not seeing your playlists or favorites elements once transferred with Soundiiz to TIDAL, you probably have to reload the cache of your TIDAL mobile application.
You can also double check on the web version of TIDAL if your datas are there.
For that, open TIDAL application in your device, go to your library and try one of this:
- Create a new playlist manually
- Rename a playlist
- Delete a playlist
- Add a tracks to favourites
After that you will be able to see whole transfer made by Soundiiz.