Thanks for playing!
It is intended for players to figure out how best to use the skills on their own, but I'm still thinking of how I can add extra tutorials for those...
Lynette's a pure projectile parry check. You either learn to reflect them and win the fight in under a minute or you spend forever trying to get past it. The shields have a duration equal to their cooldown, so they'll swap to the next colour if you don't manage to break it in time, and it's also unlikely for you to be able to break the shield without performing reflection against a whole sequence of the projectiles.
Someday I'll add small bits of voice acting....
I haven't seen other bugs related to that area, but you should be able to just move and leave the dialogue pose. There's a lot of dialogue related bugs that popped up, which I've fixed in recent updates.