[Beta 3 Bug] Terrain Material and Engine crash (@reload)

Hi all,

following procedure brought me to a engine crash.

1. Create a fully new project
2. copy my texture folder into art/terrain/textures (no materials just jpgs)
3. Create a new material named it Stone1 (with normal and diffus no SideProjection but Paralax step)
4. Paint the material on the terrain
-> Paralax not working
5. Save terrain
6. shutdown
7. Reload game and then crash

Here are some shots from the strange material on the terrain!

here is the log with missing (VisibilityLayerWindows.ed.gui)
-snip-
*** LOADING MISSION: levels/newMission.mis
*** Stage 1 load
*** Stage 2 load
*** Mission loaded
Connect request from:
Connection established 2646
CADD: 2647 local
*** Sending mission load to client: levels/newMission.mis
GuiTabBookCtrl::onChildAdded - attempting to add NON GuiTabPageCtrl as child page
GuiTabBookCtrl::onChildAdded - unable to find active page to reassign ownership of new child control to, placing on parent
GuiTabBookCtrl::onChildAdded - attempting to add NON GuiTabPageCtrl as child page
GuiTabBookCtrl::onChildAdded - unable to find active page to reassign ownership of new child control to, placing on parent
Missing file: D:/01_TGEA/T3DB3/My Projects/NFGS/game/tools/worldEditor/gui/VisibilityLayerWindows.ed.gui!
setListView
-end-
btw. i can't delete materials from the material gui!

cu
Oliver