I got a novation launchpad mk2 and there is something that I don't understand
Here is what the manual says :

Here Is what I have :

When I press the "next / prev track" keys, it works, i see the next/previous track being selected. When I'm at the end of the current group and I press again, I see the next group of 8 tracks. but then, impossible to move back to the first group because no track is selected. I have to select the track manually with the mouse in bitwig for it to work again.
When I press previous again from this point, and want to go back to the first group, The master track is selected instead.
When I use the bird eye view I'm then able to move in the grid, but it's unpractical because it semi randomly changes to vertical/horizontal mode.
I thought that I would be able to move in the clip grid simply with the arrows but this does not seem to be the case.
Thanks for your help
