Here is what worked for me;

Regardless of how the accts were mapped, i clicked on EDIT tab, then PREFERENCES. Picked Tax:1099 in the list on the left, then clicked on "COMPANY PREFERENCE" tab on the top. Then I mapped all accts to 1099-MISC (clicked on "you can do it here" next to 1099-MISC).

then on the Map Vendor payment acct screen (when you run the 1099 option) change all to "omit these payments from 1099", close the screen and go back in and then i was able to change to "NEC:box1 NE compensation".

Hope this helps