No video signal when switching Stretching modes



playing mame, I went into the Kodi in game options where you can pick  controllers, filtering etc.. and went into video stretching and changed from Fit, to full.
I instantly get no video signal. when I reboot Kodi’s interface boots up fine, but when I launch any rom I lose video again.

Is there any lXML file I can delete to change those settings back to stock?  Looks video signal is out of range?

https://paste.kodi.tv/surasenopo.kodi