When rebinding keys mouse side buttons don´t have any icons

Platform: PC, Steam

Could be pretty confusing if you have more side buttons. Almost every mouse have side buttons this day. [[PC] Extra mouse buttons don't work (RESOLVED IN UPDATE 2019-03-27)](Another post that describes that the side buttons didn´t work but this is now fixed.)
It works but is confusing when binding keys.
Steps To Reproduce:
Bind your side mouse buttons to any slot.

Host or Client: Nope.

Players in your game: None - 4

Specifications: This is not a computer related problem.

2 posts were merged into an existing topic: Problems with custom keybinds on PC