Gears a little "rough"

My Jimny now has 1500km's on the clock since new.

For some reason it's starting to become a little difficult to engage the gears, or rather not difficult just not as smooth. The weird thing is when it's cold it's easy but as soon as she has warmed up a bit it's not as smooth.
This is really difficult to explain but I'll try - In the gear lever it feels like there is a smooth shift till it hits a little "notch" then another "notch" before it's in the gear.

1st from stand still feels like this, 2nd is also like this as well as 3rd, 4th and 5th feels ok.

it's almost as if the clutch is disengaging 99.5% or something if that makes sense. Or if there is not enough Oil or something. The Zook is brand new though.

I suppose I need to ask the dealer but I thought i'd ask here first. I have an idea the dealer will say it's because it's new. but somehow I don't think so.
Any advice?

if it feels like the clutch is not disengaging fully then you could adjust the cable slightly see if that helps

In the end it was just the newnes I think, about 4000km's on the clock and much smoother now.
Thanks.

It's a 4x4 mate nothing is smooth