Discarding the marker on the option of returning trade commodity option,Bug?

[xjk_cn]

https://boardgamearena.com/archive/repl ... s=85052149;
near move 464
this marker is first put on the option by the card "Long distance trader". The game goes on and the markers are used up. No marker available and I have to discard one. Then It happens.

[hersh]

yes there is a limited number of markers in the game per player (x25). only certain markers maybe discarded when you run out.

it's suppose to rarely happen, but it does happen at times.