From what I have tested, the way the program processes connecting one wire to another wire is by setting the output of the second wire to go to the same output the first wire has.
I connected the second wire to the first one, and if you follow the bolder line, it goes to the same output as the first one.
The reason this doesn't work is explained on the itch.io page:
"Please note that if conflicting inputs are received, the state of the pin will be determined randomly. To avoid this, the tri-state buffer should be used."
I hope this helps. If you're still trying to make an or, go to this forum: https://itch.io/t/2625655/how-does-one-create-a-or-gate