Rock of Vanquisher's effect doesn't work well

[벌레컷]

1. Bug description
   When I use effect of Rock of Vanquisher, I can only add Vanquish Soul monster from my GY to my hand. Can’t special summon Vanquish Soul monster from my hand.

2. Bug reproduction steps
   1 - Start offline duel with ai
   2 -Summon Vanquish soul monster
   3 - Link Summon Rock of Vanquisher with Vanquish Soul monster
   4 - Use effect of Rock of Vanquisher

3. Screenshot OR error code
   

   
   
   
   
   
   
   

4. Expected behavior
   Rock of Vanqisher should offer me option ‘Summon 1 “Vanquish soul” monster in my hand’ or ‘Add 1 “Vanquish soul” monster from my GY to my hand’

5. What OS are you using
   Android