Based on the edits I made at https://www.wikifunctions.org/view/en/Z10122 and https://www.wikifunctions.org/view/en/Z10119, I think the language choosen is the first language aliases were inputed in

This fails for all capital letters followed by a number (C4, T2, O4, etc.). However it works for Z and also K: https://www.wikifunctions.org/view/en/Z18330

On https://www.wikifunctions.org/view/en/Z17692, the test cases are still failing with a "Gateway timeout"

When running the validator, I am getting an error that the ZId Z189 cannot be found, but if I try to put the validator into a function like echo, it works just fine

Why is the key on the validator Z186K1 instead of Z189K1?

I am not seeing that behavior on the implementation of and, just the function.

According to these two tests, https://www.wikifunctions.org/view/en/Z16849 and https://www.wikifunctions.org/view/en/Z16852 it looks like the function calls are being evaluated when they are not suppose to be

All result validations of test cases are missing the first argument as that argument is filled in by the testing system. It looks like it is trying to evaluate that function call and is failing as it is incomplete.

Putting Z1 into Z10012 works and outputs 1Z, as exemplified by this test, https://www.wikifunctions.org/view/en/Z16826