Adding Money into Trading

When trading, adding money is impossible due to being kicked out from adding set amount to the sign to trade with the other person. Its just a bug and not due to a player. Thank you.

In-game name: Trade
What happened: Cant add money into the trading system
Coordinates (if applicable): -
Who you suspect and why: Noone-Generic bug
Screenshots and evidence:

This is a known bug and already on the todo list.