[Help]How to use map terrain v3 in source terrain v2

today i try to play on map ColoradoV2 on terrain v3 but my source is running on terrain v3 (Codex TheLiciaZ Source) when i join to server , terrain map is bugs like this
SS : http://www.mx7.com/i/5ed/mMjvOV.png
http://www.mx7.com/i/5ed/mMjvOV.png

But when i try to open this map in Studio on the same source evething is look like work perfect
SS :http://www.mx7.com/i/ca2/xXVcXk.png
http://www.mx7.com/i/ca2/xXVcXk.png

any help ? , what should i do , thank you sir