Welcome aboard, from Las Vegas!
That's a little unusual that it's the second round, and not the last round that you have troble with.
I would recommend taking the magazine apart and cleaning the inside. Perhaps some rust, or a burr is causing a problem.
I know that shouldn't happen on a new gun, but you don't know how long the gun sat on the counter before you bought it.
Clean it out real good, and clean the spring too. Then rub the magazine and spring down with a lightly oiled patch.
Even cycle the spring up & down with a flat stick (popcicle), and see if you can feel it catching anywhere.
I agree with Czechbikr that UpLULA is the best loader you can get.
The last round on any magazine is always the hardest, but the UpLULA makes it easy.
Get the 9mm - 45ACP Universal loader; costs about $30-$35.