[BC]

I was going to suggest a difference between Czech Vs Korea boxes, but remembered the last manual I had was a 2L CW. It was fine.

@BC  what do you mean when you say does not like reverse?

A 1st to 2nd notch MAY be 'explained  ' by poor syncro action. But reverse gear is inactive until its engaged.

When cold you often need to put it into another gear and then into reverse (won't go in otherwise) . The clutch take up is a little lower when cold so that's probably contributing.