A few bugs to report, Avalanche's Legendary Cutlass not stacking and..
Avalanche's Legendary Cutlass comes with a Myth trap, it's a different source than the normal, learned myth trap (it's from the wand) yet, it doesn't stack, it will only use one of the traps at a time. This is a bit annoying and has to be unintended.
The other bug I'm reporting is to do with Mt Olympus. If you join a group for Mt Olympus, teleport to Garden of Hesperides (via the button), then it will sometimes put you in a separate instance/realm, but it shares the goal competitions between the two. This means all the enemies remain alive, yet it completes goals and you're separated from everyone else, bugging the dungeon and forcing you to solo it, with no way of joining back with the others.
TLDR: Avalanche's Legendary Cutlass myth trap doesn't stack with the normal myth trap,
Mt Olympus will sometimes separate you from others and share completion if you try going back to the Garden of Hesperides and teleporting back in.