Someone PLEASE help me with the cube puzzle (xbox)

i’m on the mode that everyone gets their own loot so you can take whatever you want from it. i can’t get it to work ive done every element but one or two sides never light up. my gamertag is I Own Target pls help ):

I didnt get a single legendary and I was on mayhem 3. But it took me a while to get them all lit up. Had to keep switching to different guns… for example a shotgun struggles to reach the square.

You need to be hitting each square with every type just in case. Most people also forget that kinetic. Is classed as a type. So no elemental addition