Turning paint on its side during storage?

Is there any concerns on leaving paint on its side during transportation or should my main case design be thought out with being able to keep the paints as flat as possible at all times?

I know I’ve seen lots of people store their cakes sideways (especially the stackable WOLFE) and have never heard of it being a problem.

I heard that snaz black can melt in the sun, so obviously that would be a bad idea for that particular color if it’s been out in the sun.

If they are dry they are all stored that way by me, I can fit more in the storage drawers and containers.

If they are wet... not a great idea. I had to carry my palette home flat rather than on its side in the trolley which is how it goes to the gig.