I'm playing a world that I've carried along though most 1.14 snapshots. The game crashes very soon after I join the world. Maybe 2 or 3 seconds. My hands are off the mouse and keyboard. It crashed in 5 out of 5 attempts to play 19w08b. 5 crash logs attached (hey, they're small!)
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Thank you for your report!
However, this issue is a Duplicate of MC-143404.
If you have additional information, please add it to that report.
Please search before reporting, as it's likely that one exists already.
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FWIW, I did search. I found other bugs involving ticking entities, but they all involved some player action. In my case there was no player action. The game crashed immediately after I joined the world.

This still happens to me in the full release. Is there anything different from other minecraft versions that makes 1.14 crash when you join a world?