I've noticed something strange about the shuffle facility in the 7-by-many game.
If you shuffle the letters in today's game and then add an extra L, S, C or O to the mix and reshuffle multiple times, everything is fine.
Clear the rack, shuffle, add an extra A. Each time you reshuffle using these 8 letters the A, H and E take turns in doubling up. The same happens if you shuffle the original letters and add E or H.
It's most noticeable if you shuffle the original 7 letters and then add, say, 6 Es. Each time you reshuffle these 13 letters you get, in turn, either 7 Es, 7 As, or 7 Hs.
Most peculiar.