When a shulker enters a nether portal, it's coordinates do not get divided or multiplied by 8. If you create a portal at 1000, 1000 in the Overworld, and take a shulker through it, it will spawn at 1000, 1000 in the Nether (and vice versa)
This works similarly with end portals, if you push a shulker through an exit end portal, it will appear at coordinates 0, 0 in the Overworld, even if world's spawn point is somewhere else.
(I'm hoping this will get fixed soon because the shulker is needed for the "How did we get here?" advancement)
Linked issues
duplicates 1
Comments 2
Thank you for your report!
However, we are already tracking this issue, and this report is a Duplicate of MC-168900, which is a report that has not been resolved yet.
If you want, you can upvote the parent ticket, and enable watching to receive any updates about it - if you believe you have any information that may be important for this issue, please leave a comment on the parent. Please also use the search function in the future to prevent duplicate reports.
Quick Links:
📓 Issue Guidelines – 🛠 Community Support – 📧 Customer Support – ✍️ Feedback and Suggestions – 📖 Game Wiki
💬 Mojira Subreddit – 💬 Mojira Discord
A similar thing also happens with a bed and a player, should I report a separate bug report for it, or should I add it here?