[1.4.8] missing lua on older characters?

[Dracos]

Not sure but seeing this a lot on older characters. Anything clever I can do to get them up in 1.4.8? Characters worked fine in 1.4.6.

[SHADER] Loading from /data/gfx/shaders/black_artifacts.lua
Lua Error: /engine/Shader.lua:170: cannot open /data/gfx/shaders/black_artifacts.lua: No error
At [C]:-1
At [C]:-1 error
At /engine/Shader.lua:170 loaded
At /engine/Shader.lua:69 init
At /engine/class.lua:79 new
At /engine/Particles.lua:103 loaded
At /engine/Savefile.lua:493 loadWorld
At /engine/Module.lua:1034 instanciate
At /engine/utils.lua:2221 showMainMenu
At /engine/init.lua:165
At [C]:-1 dofile
At /loader/init.lua:217