Assigned interaction button will not work from time to time. Intermittent bug. Worst time to happen is during:
- Battleground : where you re-enter into the portal or cant interact with the HP bottle fountain.
- Wild Brawl Royal : cant open chest.
- Accursed tower : cant submit hilt or interact with smith.
- Dungeon : cant open chest after defeating the boss.
Quick solution is to re-assign the interaction button again. In-order to get it working but this is really annoying especially during critical moment ( eg. PVP ).