Anti-seize is a very bad idea.... it's not really a lubricant in the sense that the calipers or other frequently moving components require. I would not be at all surprised if that was the problem. There are some places where you simply do not just use what's handy. Also, unless you applied the original grease ALWAYS clean out ALL existing grease to avoid mixing incompatible lubricants... Worst case scenario it may emulsify and lock the caliper from closing fully/evenly on the rotor.
__________________
If something breaks or you need to contact a member of the administration please post HERE. Unless it's a private or administration matter please post it on the forum. It benefits no one else if car related questions aren't posted for future users and takes away from the time I'm able to spend helping on the rest of the forum.
If you're so inclined I'm always more than happy to accept tips via PayPal. 
Tip Jar ---> 
|