I don't recall this problem being previously reported, but if you use the Search facility you might find out. The Antara manual gearbox is acknowledged to be clunky - particularly when engaging 2nd. The general advice was to learn to live with it. I have.
2015 2.2 CDTi SENav 163ps manual 4x4 in Carbon Flash with 19\" alloy spare towing a Bailey Unicorn III Madrid @ 1500kg.