There seems to be a problem that was reported on the forums and one that I duplicated on a local server with sniper not loading Stencil lists correctly. I created 4 stencils with the names tree, tree1,tree2, and tree3, loaded a .txt file labeled tree into the stencilLists folder and ran the server. I was able to load the list but when attempting to paste a stencil from it a message saying ' You need to type a stencil name / your specified stencil does not exist.'

You missed some pretty important information for us in your report. Please have a look into our Readme (https://github.com/TVPT/VoxelSniper/blob/master/README.md) and read the notes about how to create a proper bug report. Simply add things like Java version, etc. as a comment below.

Sorry for the lack of info, here you go.

Expected behaviour:
Brush should paste .vstencils in a randomized order based on a stencillist.txt in the stencilList folder.

Experienced behaviour:
Brush reads stencil list and loads the stencil list but when pasting a stencil a message saying ' You need to type a stencil name / your specified stencil does not exist.' I also checked to make all the stencil names were directly the same to what was typed in the Stencillist.txt. The name of the stencil list was Forest.txt. Screenshot of in-game issue:

http://imgur.com/QeCBc

Additional Information:
CraftBukkit 1.4.2-R0.2-1-g3d8a353-b2457jnks (MC: 1.4.2
VoxelSniper 5.166.6-jnks97
java -version output:
java version 6