Room Database doesn't save in the list

The problem is that when I open the fragment the data from from database doesn't appear in Recyclerview and when I debugged I found out that my list size is 0 after opening the fragment

I thought that something wrong with my repository, dao, adapter or activity class I asked on stackoverflow did what I was suggested to but it's still didn't work.

Just if you are curious about previous question ( I did everything in the answer) So guess maybe I've built database and created entities wrong.

Here is how my data structure looks like in JSON format as a example

[
"plant_id":1
"plant_name": 'Benny'
"plant_image":'some url'
 "plant_category" : {
  "plant_type_id":1
  "plant_type_name": 'Aloe'
   "plant_type_water" : '1 day per week'
   "plant_type_details" : 'poisonous for cats'}
]

So in Sqlite DB Browser I created 2 tables Plant and Plant_Category. Now I porbably think that I might haven't done the Entity class right.

Plant class:

@Entity(tableName = "Plant")
data class Plant(

        @PrimaryKey var plant_id:Long,
        @ColumnInfo (name="plant_name") var name: String,
        @Embedded var type: Plant_Category,
        @ColumnInfo(name= "plant_image") var image: Int,


        ) {

}

Plant_Category Class:

@Entity(tableName = "Plant_Category")
data class Plant_Category(

        @PrimaryKey var plant_type_id: Int =0,
        @ColumnInfo(name="plant_type_name") var type:String ="",
        @ColumnInfo(name="plant_type_water")var water_time: String ="",
        @ColumnInfo(name="plant_type_details")var details: String = "",){
    
}

Database Class:

@Database(entities = [Plant::class, Plant_Category::class], version = 1)
abstract class PlantDatabase:RoomDatabase() {
    abstract fun plantDao(): PlantOperations
    abstract fun plantCategoryDao(): PlantCategoryOperations

    companion object {
        private var INSTANCE: PlantDatabase? = null
 

        fun getDatabase(context: Context): PlantDatabase {
            if (INSTANCE == null) {

                INSTANCE = Room.databaseBuilder(
                    context.applicationContext,
                    PlantDatabase::class.java, DB_NAME // directory that leads to database
                ) 
                    .fallbackToDestructiveMigration()
                    .build()
            }


            return INSTANCE!!
        }
    }
}

I'm very new to the Room Database there is a chance that I've missed something critical. But I will be grateful for your help