Battleground Vol'jin HP issue

Hi,
so basically stats after the swap are strange, there are cards influencing the result, but I don’t have the patience to figure out what exactly the problem is. gl&hf

edit: Summing up screenshots - Firstly I use HP on minion from inn , then buy it, place on the board, HP is being canceled and I’m reusing HP to swap stats and end result stats are wrong by +20/+20

https://snipboard.io/ipTSVb.jpg
https://snipboard.io/7yWMcr.jpg
https://snipboard.io/Z3hoy6.jpg
https://snipboard.io/meAiCk.jpg

The German text of Vol’jin’s hero power is incorrect: The English text “Choose 2 minions. They gain each other’s Attack until next turn” is translated as “Choose 2 minions. They swap Attack until next turn”.
I would recommend the following German text:
“Wählt zwei Diener aus. Ihr Angriff wird kombiniert. Beide erhalten den erhöhten Wert bis zum nächsten Zug.”