For the whole existance of human race, thousands of years, SHIFT + ENTER was used for moving to next text line and not for some 3D MODE THAT CRASHES THE WHOLE PROGRAM AND DOESN'T SAVE YOUR WORK OR LET YOU RECOVER.
It's so embeded in the heart of men, that it happened to me 4th time in a week.
I swear to god I will stop paying for this product just because I even have to turn this stupidity off.
It's possible that they shortcut got mapped to the 3D function (it is STILL for moving to the next line). You can use your Edit Menu to see your custom keyboard shortcuts. If you select the option to use default keyboard shortcuts, your problem will go away.
Adobe Community Expert / Adobe Certified Instructor