Placing spawners with custom NBT in survival removes the NBT data and places the default spawner. Please don't mark as a duplicate since this bug affects the new snapshots and has been falsely reported for other versions in the past.
Linked issues
Attachments
Comments 3
Thank you for your report!
We're tracking this issue in MC-105216, so this ticket is being resolved and linked as a duplicate.
That ticket has already been resolved as working as intended, which means this is not considered a bug and won't be fixed. Please do not leave a comment on the linked ticket.
If you haven't already, you might like to make use of the search feature to see if the issue has already been mentioned.
Quick Links:
📓 Bug Tracker Guidelines – 💬 Community Support – 📧 Mojang Support
📓 Project Summary – ✍️ Feedback and Suggestions – 📖 Game Wiki
Duplicate of MC-105216, intended.