Adjustments are not saved on exit which is the same behavior in MAME/MESS.
Also, if hlsl_ini_write is set to 1 it seems to be saved as nvram file and not .ini or in the ini directory, and if the user has or chooses to have hlsl_ini_read set to 1 without an nvram file it will crash HBMAME
This is somewhat a concern because people will possibly submit false alarm crash reports.
I will have to check if the same thing happens with an svn build of MAME/MESS or just wait for u2 release.