When I apply the brakes, I hear a clicking noise

[BobMarley1]

anyone know what could be the cause?

I changed the brake pads, and after I did this, it started.
So it's something I did.

The only thing I can think of is that I used anti-seize gel on the locking pin and brake pad backing. The squeeling is gone, but now it clicks.

It clicks going one way, meaning if I go forward, the initial application of brakes will cause the click, then from then on it won't click, unless I go in reverse and apply the brakes, then I get a click, then a click when I go forward again, but the click doesn't happen everytime I apply the brakes(going in one direction).

Any insight?

thanks!