I've just had my Java version updated to 1.15 Pre Release 1, I had intended to travel to an End Cities to look for Shulkers to build more Shulker boxes, however while I can get to the End without issue, the End Portal found in strongholds that send you to the End render and function properly, but the End Portals that appear along the perimeter of the main island after defeating the Ender Dragon are bugged. Whenever you get close to those End Portals the game crashes.
Also, side note, I know this is likely being worked on, but there are major rendering issues in the game when trying to render distance landscapes.
Thank you for your report!
We're actually already tracking this issue in MC-166004, so I resolved and linked this ticket as a duplicate.
If you would like to add a vote and any extra information to the main ticket it would be appreciated.
If you haven't already, you might like to make use of the search feature in the future to see if the issue has already been reported.
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