As you know, we at AnswerXchange cannot see your screen nor your tax return, but let me offer these possibilities:
1. If you use the "Short Schedule SE" form on page 1 of Schedule SE, the amount that carries to line 14 on Schedule 1 is indeed line 6 as you point out. However, if you are using the "Long Schedule SE" (on page 2 of Sch SE), then the number on line 14 of Schedule 1 comes from line 13 of Sch SE.
2. If you have more than one Sch C, then the line 14 amount on Schedule 1 is the sum of all the Sch SEs (whether line 6 or line 13, as appropriate).
[Edited 4/1/2020 2:06 pm CDT - updated for 2019]