I have come across this before and the cause has been that the caliper mounting lugs (on the hub) are bent, this is usually caused during the fitment of new wheel bearings on a press, the old caliper carriers have more of a gap so you would not have noticed the problem previously.

You need to remove any washers you've used to pack the bracket out and bolt it all back up without the pads in place, you can then measure the gap either side and also check to see if the if the gap is constant or tapered, if the gap isn't tapered you can simply shim the bracket to make it right, don't use ordinary washers. I can help with shims that are made for this purpose, they come in 0.5mm thickness. If the gap is tapered then I'd get another hub.

Regarding the anti rattle clip touching the disc... Are those discs the one's that were bought from a rear kit of mine? If so you need to measure them as they may be 332mm, if so you can simply turn them back down to 330mm or fit a 1mm shim between the caliper and bracket, I have these.

Lastly someone mentioned that the washers should not be fitted under the head of the disc to bell bolts, this is incorrect and how you have it bolted up is fine.