I have started having a very similar issue. I am using a commercial license and version 6.13.19058.371, 2/27/201. Starting very recently, my customized aliases and color schemes revert to default, seemingly randomly. I wouldn’t mind the colors so much, but in between commands sometimes the aliases are forgotten and my habitual AutoCAD-like command shortcuts instead do the default command (like ‘mi’ for mirror yields ‘MicroScribeCalibrateTip’). Since the comma/period thing was fixed last year, is there a recent update that would cause these issues?
My company uses roaming profiles. Could this be part of the issue? Re-importing my aliases every five minutes is getting rather tiresome.