Played the training dock. The FIND to DIAGNOSE to RESOLVE loop is clear once you are inside it, and keeping the rule card (Circle cores use power level 1 or 2) pinned while you inspect makes the comparison fair. Two friction points from a cold open:
1) Nothing signals that the BAY panels are clickable. I clicked START NEXT TESTER first, nothing happened, and I assumed the demo was stuck. A select-a-bay-to-inspect cue, or module cards that read as tappable, would fix the first thirty seconds.
2) The HUD is dense for a first-timer (shift clock, relay score, solve chain, rules practiced 0/9, trophy list, dock map) and a lot of it is small caps competing for the same attention. Trimming what is visible during training would help.
If START NEXT TESTER is intentionally inert until a dock is restored, making it read as disabled would clear up the confusion. Strong premise: the rules-practiced counter made me want to finish all nine.