Why won't the tab be inserted on the first added line?

seems to work fine May be your file on loading so it can not be play, the Toasts make your load and play delay more.
You may need implement setOnLoadCompleteListener and call the play inside the listener.

mSoundPool.setOnLoadCompleteListener(new OnLoadCompleteListener()
 {
    @Override
    public void onLoadComplete(SoundPool soundPool, int sampleId,int status) {
mSoundPool.play(sampleId, LEFT_VOLUME, RIGHT_VOLUME, PRIORITY, NO_LOOP, NORMAL_PLAY_RATE);

 }
 });

I wish this helpful for you You need to make the style_title tag your container that defines the rest of it's content. By making it inline-block and styling the inner elements appropriatedly you will get what you need.

#content_box {
  background-color: #ffffff;
  min-width: 100%;
  min-height: 75vh;
  text-align: center;
  overflow-y: auto;
  display: inline-block;
}

/* styling for the movie images and titles */

#img {
  /*max-width: 60%;
  display: inline-block;*/
}

.image_box {
  display: inline-block;
  width:30%;
}

.style_title
{
  display:inline-block;
}

.movie_img {
  height: auto;
  border-radius: 10px;
  display: inline-block;
}

.title {
  min-height: 100px;
  max-width: 100%;
  margin-bottom: 100px;
  display: block;
}

<div id="content">
  <div id="img">
    <a href="link" class="style_title" target="_blank">
      <div  class="image_box image_id">
        <img class="movie_img" src="https://images-na.ssl-images-amazon.com/images/M/MV5BOGNkMzliMGMtMDI5Ni00OTZkLTgyMTYtNzk5ZTY1NjVhYjVmXkEyXkFqcGdeQXVyNTAzMTY4MDA@._V1_UY209_CR0,0,140,209_AL_.jpg">
      </div>
      <div class="title">The Disaster Artist (2017)</div>
    </a>
    <a href="link" class="style_title" target="_blank">
      <div class="image_box image_id">
        <img class="movie_img" src="https://images-na.ssl-images-amazon.com/images/M/MV5BOGNkMzliMGMtMDI5Ni00OTZkLTgyMTYtNzk5ZTY1NjVhYjVmXkEyXkFqcGdeQXVyNTAzMTY4MDA@._V1_UY209_CR0,0,140,209_AL_.jpg">
      </div>
      <div class="title">The Disaster Artist (2017)</div>
    </a>
    <a href="link" class="style_title" target="_blank">
      <div class="image_box image_id">
        <img class="movie_img" src="https://images-na.ssl-images-amazon.com/images/M/MV5BOGNkMzliMGMtMDI5Ni00OTZkLTgyMTYtNzk5ZTY1NjVhYjVmXkEyXkFqcGdeQXVyNTAzMTY4MDA@._V1_UY209_CR0,0,140,209_AL_.jpg">
      </div>
      <div class="title">The Disaster Artist (2017)</div>
    </a>
    <a href="link" class="style_title" target="_blank">
      <div  class="image_box image_id">
        <img class="movie_img" src="https://images-na.ssl-images-amazon.com/images/M/MV5BOGNkMzliMGMtMDI5Ni00OTZkLTgyMTYtNzk5ZTY1NjVhYjVmXkEyXkFqcGdeQXVyNTAzMTY4MDA@._V1_UY209_CR0,0,140,209_AL_.jpg">
      </div>
      <div class="title">The Disaster Artist (2017)</div>
    </a>
    <a href="link" class="style_title" target="_blank">
      <div  class="image_box image_id">
        <img class="movie_img" src="https://images-na.ssl-images-amazon.com/images/M/MV5BOGNkMzliMGMtMDI5Ni00OTZkLTgyMTYtNzk5ZTY1NjVhYjVmXkEyXkFqcGdeQXVyNTAzMTY4MDA@._V1_UY209_CR0,0,140,209_AL_.jpg">
      </div>
      <div class="title">The Disaster Artist (2017)</div>
    </a>
    <a href="link" class="style_title" target="_blank">
      <div id="image_id" class="image_box">
        <img class="movie_img" src="https://images-na.ssl-images-amazon.com/images/M/MV5BOGNkMzliMGMtMDI5Ni00OTZkLTgyMTYtNzk5ZTY1NjVhYjVmXkEyXkFqcGdeQXVyNTAzMTY4MDA@._V1_UY209_CR0,0,140,209_AL_.jpg">
      </div>
      <div class="title">The Disaster Artist (2017)</div>
    </a>
  </div>
</div>

like below fixes the issue Beside the ExecuteReader, which should be ExecuteNonQuery(), you are declaring wrong the insert parameters, should not be single quoted. Try:

INSERT INTO `user` (Loginname, Email, Algo, Stretch, `Hash`, Salt) VALUES (@loginname, @email, @algo, @stretch, @hash, @salt)

wish helps you The try block always fails. It fails at this line user_uid = cur_ps.fetchone()[0] if the query returns no rows. It fails at this line user_uid = cur_ps.fetchone()[1] if the query returns one row.
fetchone returns one row at a time. This line user_id = cur_ps.fetchone()[0] is looking for element 0 in the list returned by fetchone. If there are no rows with matching user_email, it fails with "None type object not subscriptable" and therefore executes the except block

this one helps. I forgot to instantiate the adapter in MainActivity.kt
adapter = UserAdapter()

        binding = DataBindingUtil.setContentView(this, R.layout.activity_main)
        val dataSource = UserRoomDatabase.getInstance(application).userDao
        viewModelFactory = ViewModelFactory(dataSource,application)
        viewModel = ViewModelProviders.of(this,viewModelFactory).get(MainActivityViewModel::class.java)
        binding.lifecycleOwner = this
        binding.mainActivityViewModel = viewModel
        binding.executePendingBindings()

        adapter = UserAdapter()

        binding.userListRecyclerView.adapter = adapter

        viewModel.usersList.observe(this, Observer<List<User>> {users ->
            users?.apply {
                adapter?.userDetailsList = users
            }
        })