Sand/Gravel physics not working

Hi, recently I've discovered that sand/gravel physics aren't working on my server. When I place them, they just "teleport" to the ground. My plugin list: http://pastebin.com/MnWzF2A5 . Thanks for your help.

 

mawej1 Is this server hosted from a host or from your computer? If it is a host then you need to upgrade your plan because it seems like you don't have enough power to support 94 plugins. If it is on your computer then bring up the ram by 1-2GB.

 

Gerov I tired removing some, now I have 60 plugins and 500MB free of ram, but the physics aren't still working

 

mawej1 Hmmmm, is it your internet? Can other people seem them?

 

Gerov No, I have quite good intenet. And no, other players can't see the physics.

Gerov It's working now... I don't know how I did that But just tried and it worked... But I don't think that it is permanent. Still, 500MB of ram free

EDIT by Moderator: merged posts, please use the edit button instead of double posting.

 

Yep, not working

 

anyone?