I am Playing in the latest snapshot of 1.16 and I am in a survival World
When I Kill the dragon It was supposed to generate a portal to go to the islands but nothing happend, I put in spectator mode to find more rapdly but litteraly, it didin't generated, I killed the dragon 1 more time just to see if was a little coinscidensce but again nothing happend.
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Thank you for your report!
However, this issue is a Duplicate of MC-184482.
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