4.3 Rollback to 4.2 & Now Failing To Screen

[landspeeder]

Good day Recalboxites.  I have been running 4.2 beta  on my RPI3, Wired Ethernet, BT Dongle 8bitdo controller now since release with very little issue.  I just updated to 4.3 beta and now all games (NES, SNES, N64) after launching keep failing back to the main recalbox screen using both simplelight or recalbox theme (at a MUCH smaller resolution).  Do any command exist to roll back to 4.2 beta?  Thank you note:  this is installed dual boot noobs with osmc per http://www.matthuisman.nz/2015/09/dual-boot-recalbox-and-osmc.html