Whether these are bugs or intended behavior, I do not know. Updated to include other Archetype versions of the powerset. Feel free to pass any knowledge along, love the powerset!
1. Soothing Wave
Question: Should the healing to target provided by Soothing Wave count towards the Healing Badges? (If so, it is currently not).
2. Whitecap
Question: If the Target Type for Whitecap is "Enemies" why can I use it when I have an ally targeted?
Question: Whitecap can't be cast on Halloween Event Banners, even though they are clearly marked as enemies and take damage. Is this intended behavior? (Though you can cast it on a nearby ally to apply the debuff).
Answer from @Player-1 "As for Whitecap specifically, it and Savage Leap share the same issues with targeting due to certain targets having their true position being somewhere off the map. We are looking into ways around this as its a very specific interaction."
3. Tide Pool
Question: Is there a reason why Tide Pool can be cast on the ground, but not in the air? All other Location AoE powers can be cast on any surface or target within range (i.e. Whirpool, Sleet, Blizzard, Ice Storm, etc., can all be cast in the air).
Question: Tide Pool animation does not fire consistently - why is that?
4. Shifting Tides
Question: Are the "% chance for" in Shifting Tides (Corruptor) supposed to say 0%?
Answer: The chance increases per stack. At 0 stacks it's 0%. But it sounds like one of those wonky display things.
5. Barrier Reef
Question: Why does the enhancement screen for the power not show Absorb enhancement value when a Heal IO is slotted? It shows Heal value though.
6. Power of the Depths
Question: Does the +Range from this power increase the radius of itself if made perma?
Answer: No, but it will increase other powers range.
That's all so far. Again, I don't know if these are bugs or intended behavior, so feel free to comment.