I have the feeling i have let down the forum lately, as can be seen from my "half line" replies ...
I think the forum is letting us down Tommy. 
The editor ?
BTW, found another "shoot the foot" issue and this time i can safely say it is the QT part of it, so do not be disappointed if it ends up again as not being QT issue !
Procedure to reproduce the "wipe the parameters to default":
-Requires Mesa ethernet, not sure for anything else,
-set the PC to autostart LinuxCNC with the config in use,
-boot the PC but leave the machine off so it can not communicate with the Mesa board,
-it errors out with the error report ( this is normal )
-close the error report
-power on the machine
-double click on the desktop shortcut to start LinuxCNC with the same config as in the autostart
--Ding, ding, ding we have everything at default.
I did mention before that it happened on two of the three machines, the third machine switches off and on the power to PC and machine at the same time, so this does not happen, took several days of 2 to 4 hours of hunting till i figured this out! Oh joy !
Maybe tomorrow i can get some quality time with the big machine and do an update, have to cut some key hangers, so here it is in one of the versions, that be my family name and it is hanging in the hall way for over two years now, also the SVG if anyone want to edit and cut this:
