Legendary gems all getting 1star, is event even working

Am I Bug? I spent more than 30 legendary crest all i get is one star legendary gem. No collusus engine or anything beyond useful or higher than legendary 1.
It feels like I wasted time and scammed from colosus engine event making you believe you will have a chance to get that gem rather received all 1star

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If you visit the Elder Rift portal, and click on the small red i you can view information regarding the drop rates of legendary gems. That in-game information is as follows, for legendary or eternal legendary crests…

  • 1-star gem = 75.395%
  • 2-star gem = 20.105%
  • 5-star gem = 4.5%

So…

  • Chance that a crest does not give you a 2-star or 5-star gem = 75.395% = 0.75395
  • Chance that none of X crests give you a 2-star or 5-star gem = (0.75395)^X
  • Chance that none of 30 crests give you a 2-star or 5-star gem = (0.75395)^30 = 0.000209

Roughly 1 in 4,783 players would get this result.

Is that unlucky? For sure.
Is that bugged? Nope.