If you throw a Trident and enter another dimension, then reenter you will never be able to load the dimension you threw the Trident in again. Therefore not allowing the player to play.
Reproducing
Throw a loyalty Trident in the Overworld
Before it comes back to you, enter another dimension
Try joining the Overworld again
You'll see, you can't get past the "Rendering World" screen
Comments 2
Cleaning up old tickets: This ticket had been set to 'Awaiting Response', but has not received a response from the reporter (~3 months+) so is being closed as Incomplete. If you feel this is still a valid issue then please comment, or create a new ticket following the Issue Guidelines which includes steps to reproduce the problem.
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Thank you for your report!
However, this issue has been temporarily closed as Awaiting Response
Is this still an issue in the latest version? If so, please update the affected version, and add any new information and additional steps to help us reproduce the issue.
This ticket will automatically reopen when you reply.
Just a reminder, Realms-only issues should ideally be reported in the Minecraft Realms section of the bug tracker - however, any account specific issues or queries should be sent directly to Minecraft Customer Support, who will be able to request more information and assist you further.
Quick Links:
📓 Issue Guidelines – 💬 Mojang Support – 📧 Suggestions – 📖 Minecraft Wiki