Kotlin, why the ending of numeric data is truncated & displayed - kotlin

Question

In my app, the UID is 9 digits numeric data. I pass an ArrayList to the adapter, the onBindViewHolder will log full digits. But the ending digits of each entries will be differently truncated & showed in the card. When displaying 3 entries, the UIDs shown are 7 digits or 8 digits but never 9. The LinearLayout is containing the RecyclerView which display records as CardView. Why the number "truncated" before display? Any comment is really appreciated.
The activity that displaying the data is just responsible for retrieve data from firebase, add them into ArrayList then attach to the adapter. The entries of the list was checked.
MarritalView.xml
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".FactModule.smallactivities.FactMarritalView">
//...some views omitted
<LinearLayout
android:id="#+id/linearLayout999"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:paddingHorizontal="5dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/textView15">
<androidx.recyclerview.widget.RecyclerView
android:id="#+id/marritalList"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</LinearLayout>
</androidx.constraintlayout.widget.ConstraintLayout>
OnBindViewHolder
override fun onBindViewHolder(holder: MyViewHolder, position: Int) {
val currentitem = marritalFactList[position]
holder.uid.text = currentitem.uid.toString()
Log.d(ContentValues.TAG, "Value is: ${holder.uid.text}") //display 9 digits
holder.ageGroup.text = currentitem.ageGroup
holder.husbandRace.text = currentitem.husbandRace
holder.divorceAfterYears.text = currentitem.divorceAfterYears.toString()
holder.country.text = currentitem.country
}
MarritalItems.xml
<?xml version="1.0" encoding="utf-8"?>
<androidx.cardview.widget.CardView xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="16dp"
app:cardCornerRadius="8dp"
app:cardElevation="8dp">
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginVertical="6dp"
android:layout_marginStart="16dp"
android:orientation="vertical">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_gravity="center_vertical"
android:orientation="horizontal">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Record UID "
android:textColor="#color/black"
android:textSize="24sp"
android:textStyle="bold" />
<TextView
android:id="#+id/tvMarritalUID"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginStart="8dp"
android:textColor="#color/black"
android:textSize="20sp" />
</LinearLayout>
//...more horizontal linear layout ommited
</LinearLayout>
</androidx.cardview.widget.CardView>
MarritalFact.kt
data class MarritalFact(
val uid:Int, val ageGroup:String, val husbandRace:String,
val divorceAfterYears:Int, val country:String, val username:String
){
constructor():this(0,"","",0,"","")
}