i keep thinking now that it must be one of the little black boxes on the back of the clock circuit board.
Could be. The black boxes are relays which close a set of contacts supplying power to the element. The clock opens/closes these relays

I'm not sure if cicuit bord is the right term but
Spelling is wrong but the term is right

all the parts catalogs just call that thing "CLOCK"
Yes you will see it called a number of things depending on the manufactures.
I like the term EOC (Electronic Oven Control)

I don't see any errors coming up either.
No, you will not get an error. The electronics just knows that it tried to close the relay, they do not monitor that the relay actually closed.

I am also leaning towards it being the board/clock.

Note: I am not sure how the overlay is held to the clock, many are glued on (double sided tape) so you may need a new one of those. See "Backguard" section in the parts breakdown, They are 20A and F20 towards the bottom of the list.

Again the only way to be 100% sure that it is the clock is to measure the elements and the wires to ensure they are OK and then by the process of elimination, it must be the clock.

Before ordering try to remove the faceplate from the clock. Hopefully I am wrong. There is no use getting a new one unless it is absolutely necessary.
If it is glued down, heat around the outside with a hairdryer this will often loosen up the glue to make removal easier.

These days I think most companies make good units and not so good units.
I am not a GE fan as trying to get any tech info on their equipment is very difficult. I try to stay away from fancy, the more bells on a unit the more things that can go wrong. Also they will sell less of these so they will go obsolete quicker. Stay with well established suppliers, not that many years ago Bosch dishwashers were touted as the most reliable but then they had not sold a great number. Today you will see lots of them looking for repair help because now they have a fair number of units in the field.