How to remove Trader units in World Builder???

[Ron Wee]

I place 2 Traders on the Map and now can't remove them with right click

 

[Mithun apartment]

I have the same issue! Did you figure out a solution? I tried removing most my mods (only have the religion expanded mod still installed), but that didn't solve the problem. I really want to play with it but can't remove anything!

 

[Victoria]

Right click will take away most things but have not tried a trader, will have a go later when I look at a levying issue.