SDLMAME v0.193 now wont start on my Mac

[deckard666]

As it says it used to run ok direct from terminal but I tried altering the filter as I wanted scanlines and it crashed and now won't restart - If I double click it now I get this error message -

"/Applications/mame0193-64bit/mame64 ; exit;
**Error loading plugin.ini**
Unable to open effect file bgfx/effects/gui_opaque.json
Unable to open effect file bgfx/effects/gui_blend.json
Unable to open effect file bgfx/effects/gui_multiply.json
Unable to open effect file bgfx/effects/gui_add.json
Unable to open effect file bgfx/effects/screen_opaque.json
Unable to open effect file bgfx/effects/screen_blend.json
Unable to open effect file bgfx/effects/screen_multiply.json
Unable to open effect file bgfx/effects/screen_add.json
Ignoring MAME exception: BGFX: Unable to load required shaders. Please check and reinstall the bgfx folder

Fatal error: BGFX: Unable to load required shaders. Please check and reinstall the bgfx folder

Segmentation fault: 11
logout
Saving session...
...copying shared history...
...saving history...truncating history files...
...completed.

[Process completed]
"

I have tried reinstalling but it does the same so I presume it is holding some preferences from previously ? Any ideas and be gentle with me as all I want to do is carry on playing my all time fave game Tie-die Robotron Rom

Weird - Just moved the entire contents of that SDL folder to my home folder and started using ./mame64 and it works but if I then try to open it by double clicking it still fails in Terminal ......