[1.7b7] Unable to start new game on developer mode[RESOLVED]

[Pseudoku]

When I start a new game on 1.7.0 BETA7 in Developer Mode, the loading screen gets to 100% and then nothing happens - the character creation dialog does not appear.

Logs show:

[SHADER] Loading from /data/gfx/shaders/black_artifacts.lua
Lua Error: /engine/Shader.lua:182: cannot open /data/gfx/shaders/black_artifacts.lua: No error
At [C]:-1
At [C]:-1 error
At /engine/Shader.lua:182 loaded
At /engine/Shader.lua:69 init
At /engine/class.lua:79 new
At /engine/Particles.lua:109 loaded
At /engine/Savefile.lua:508 loadWorld
At /engine/Module.lua:1078 instanciate
At /engine/utils.lua:2952 showMainMenu
At /engine/init.lua:207
At [C]:-1 dofile
At /loader/init.lua:217

[Pseudoku]

Fixed after deleting world.teaw in the save folder.