Matheus Puzzle not working for me and my pal

[Sches]

Me and a friend are trying to figure out the Matheus puzzle but the yellow pieces are working for neither of us, however the black works for both, this makes it impossible to get to the next step. What can we do? We've both made sure they're right on both ends.

[GuyNamedChris]

You talking about the connecting part? The first person has to put in the other's black code and the other person puts in the first person's yellow code.

[Arash70]

You see there's an order to that

First one of you need to use the black code

Then other one can use the yellow one

it works like public/private encryption keys

(First puzzle authentication -》 second one brute forcing -》 third one deciphering)

 

Fun fact: ancient egyptians used to do ciphering/deciphering as a hobby.

[Sches]

3 hours ago, Arash70 said:

You see there's an order to that

First one of you need to use the black code

Then other one can use the yellow one

it works like public/private encryption keys

(First puzzle authentication -》 second one brute forcing -》 third one deciphering)

 

Fun fact: ancient egyptians used to do ciphering/deciphering as a hobby.

We've done this, Yellow one still doesn't work. I've waited with the black puzzle on while she types in the yellow part and vice versa however it says it's wrong and erases it.

[Arash70]

You see, you gotta be careful writing those characters

there is plenty of similar ones, 1 wrong character and all you wrote goes to waste