I cant make new pstones. the old ones still work. I am using craftbukkit 2340 and PreciousStones version 9.4.1. I have the permissions and i am a op. there is no output in the console.

try the new dev version on jenkins

I found the problem. I have a plugin called AutoSneak. when I am in sneak mode pstone's wont let me place pstones.

that did not work.

What change made them stop working? Upgrading cratbukkit? Test with a lower version to see if that was it. Let me know what you find.