I believe I may be encountering a significant bug, in that case. Frequently I'll reach the round with the egg timer and find the letter bank rapidly begins toggling between entirely new sets. These are screenshots taken only a few seconds apart from my most recent run:
When this happens, there appears to be a single set the game chooses as the "real" list its accepting words from but shuffles in new sets of letters on the display whenever the letter bank would be scrambled instead of shuffling their order.
