Cheat Engine

[Goat Engine]

pushf
mov [142782E19],02
mov edx,00004060
@@:
mov [142782E19],02
cmp [142782E19],02
jne @b
popf
jmp exit


The idea here is that it seems very tricky to get the value of 2 to "stick" to the static address of 142782E19 and there is no rhyme or reason as to when it sticks and when it doesn't, so I have it applying twice AND came up with this compare loop to make sure the address of 142782E19 has accepted the value of 2 or it's SUPPOSED to jump back up and do it again, etc...

What's happening is:
1) Most of the time, the value of 2 never gets accepted by the 142782E19 address. There HAVE been times it has stuck but I can't figure out why.
2) When the compare checks to see if it has been changed to a 2, it acts like it was successful (even though it was not a value of 2) so it FAILS to jump back up and try to apply the 2 value again.

What's the explanation for why this is happening, and the correct way to write what I am trying to attempt here? (you can ignore the mov edx line)

[ParkourPenguin]

That is working; it's just that something else is writing to it that overwrites the value you wrote.
Set a breakpoint on your code and watch what happens.

Also, I'm pretty sure that's writing a 4-byte value. If you only want to write one byte: