Corsix mod studio work with the new steam version?

[MindЯewind]

Im trying to mod the game but when I try to test the mod thro corsix, it will load the game but says "could not verify media"

Not sure if there is something im missing. I tried to load the mod using the steam start commands

-mod my_mod_ it wont load if I do that. Steam says its starting the game then it just stops.

-modname my_mod_ It loads game but its not my mod just vanilla.
I tried with coh legacy and company of heroes on steam.

The game runs fine without mods..

[MindЯewind]

Does anyone else have problems modding coh now?