When I had my table set up (Bluegrass Billiards, Nashville), they set the cushion lower than the rail so that if you were shooting off the cushion your cue would actually scrape the edge of the rail. The store who sold me the table sent them back. I told the mechanic he wasn't leaving until it was right. That was stupid. He packed his tools back up and left without fixing the table he messed up.
Measure from the bed of your table to the nose of the cushion. It should be 1-7/16". If it is, then I would guess they set the feather strip too low in the dado cut and not flush with the rail top. Easy fix with new rail cloth and perhaps new feather strips if they were too small for the cut.