I tried putting the cry file in the mods/mwll/game/level/multiplayer/
hmm ok, something must be in the wrong place or corrupted... as an example, if you are working on a level called "TSA_Zoetemeer" you would need to work on, save and export from "Mods\MWLL\Game\Levels\Multiplayer\TSA\TSA_Zoetemeer\*.cry"
You may need to delete the "level.pak" file after moving the level into its correct location to force the resource compiler to rebuild the cgf's for those solids..(also may need to regenerate your surface texture once u delete level.pak)
Do you create your own textures in photoshop, or use the 3dsmax plugins ? You can test if the resource compiler is actually working and being found by checking if either of those programs will find it when they start.. In photoshop you will get an error when you try to save a "crytiff" saying that it cant find the RC... in 3dsmax it will popup a small dialog at startup, this should tell you via a little green icon that its found the RC properly..
A quick test to see if solids are working independantly of your map would be to create a quick blank test level, copy it to the proper mwll location, then create a couple of random solids somehwere on it, export and test ingame to see if they work...
Also in the interests of asking some really simply questions first, so they arent overlooked lol.. are you running the editor as an administrator or while logged in on an admin account ? Did you install the editor using its own installer or did u have to manually copy things around ? Are you using the Steam or Retail version of the game(the RC location is important as it needs to match where the registry thinks it is)...
In the windows registry, under "HKEY_CURRENT_USER\Software\Crytek\Settings" there should be a key called "RootPath" .. this should point to the root crysis wars folder wherever it is.. in my case its "C:\Program Files(x86)\Electronic Arts\Crytek\Crysis Wars" ... if you arent familiar with the registry, you can run a program called "SettingsMgr.exe" to set those keys, it should be located inside the "Crysis Wars\Tools" folder..