Rescue Riders and Race to the Edge theories

First Theory

Both Rescue Riders and Race to the edge are Netflix original series and both by HTTYD. RTTE came out first with 6 seasons and Rescue riders is a newer series which came out I believe this year in either Feb. or Jan. only has 2 seasons right now, but I believe there will be more seasons coming soon. 

Rescue Riders has 2 short films Secret of the Songwing and quest for the golden egg.

I will be talking more about Quest for the Golden egg at first, I don't think in gone un-noticed when Leyla was solving the last puzzle where she matched dragon classes to the dragons. Has anyone noticed that the dragons on the puzzle were exactly the same dragons as the one that Hiccup and the gang rides in RTTE, huh? but that's not the big part Rescue riders uses the normal httyd dragons all the time if you watch the episodes but, what about the Night Fury? It was on the puzzle as well and Night Furies are well extinct accept for Toothless. There is only one night fury and like only a couple Vikings who know a night fury class, skill and so on . HICCUP! and the RTTE gang. for the first theory I think that maybe......someone from RTTE made the puzzle to keep the dragon inside safe???? But who? 

obviously we could just say "oh Hiccup must have made" and I guilty of that but the more I think I really don't think so. I think maybe Defenders of the Wing maybe or the Wing Maidens they seem more likely to made a puzzle to protect a dragon and I have to say Defenders of the Wing, but then again the Wing Maidens hid a Dragon eye lenses in a puzzle in the episode where every Snotlout combines Miden to take charge. but Dragons of the Wing seem more like the protecting every dragon type where the Wing Maidens pay more attention to their baby  Razorwhips (good for them) What do you think about this theory ?