Bp Hex Grid procuderally generated offset problem

Hi iv been playing around with all the stuff Blueprint can do.

Now im little stuck with creating an procuderally generated grid-tilemap. Im unable to find how to offset the tiles to stop being treaten as 4 edged tile

Ugly gap

This is the actual Math. ith works very fine for cubes. but cubes arent that fun and i would like to learn how to do that.
I tried a lot of of ways i could imagine but cant fint the correct one.

Just need some direction not necessary a full solution i love to figure stuff by myself as far as posible.

Here you’ll find infos

Don’t know if you’ve found this solution yet. I’ve found this link to be helpful: