When a Realm crashes, mob spawners in loaded chunks break. The manner in which they break is as follows:
The miniature mob inside the cage to denote the spawner's type disappears
The spawner does not spawn mobs, even in favorable conditions (i.e. darkness for monster spawners)
To fix the issue, a player can simply use a mob egg on the spawner set its type. The spawner will begin working normally until the next crash.
I don't have the resources to properly research this issue, but it has happened twice on a Realm I frequent. It could happen only as a result of a specific type of crash (the first occurrence happened in the middle of a series of banner placement-related crashes), but as of yet I cannot confirm this.
Related issues
duplicates
relates to
Attachments
Comments




Thank you for your report!
However, this issue has been closed as a Duplicate of MCPE-27446.
Your additional information and observations are very useful, so if you can add them to the comments section of the parent issue it would be appreciated.
Quick Links:
📓 Issue Guidelines – 💬 Community Support – 📧 Feedback – 📖 Game Wiki
Thank you for your report!
However, this issue has been closed as a Duplicate of MCPE-27446.
Your additional information and observations are very useful, so if you can add them to the comments section of the parent issue it would be appreciated.
Quick Links:
📓 Issue Guidelines – 💬 Community Support – 📧 Feedback – 📖 Game Wiki
Thank you for your report!
However, this issue has been closed as a Duplicate of MCPE-27446.
Your additional information and observations are very useful, so if you can add them to the comments section of the parent issue it would be appreciated.
Quick Links:
📓 Issue Guidelines – 💬 Community Support – 📧 Feedback – 📖 Game Wiki
Thank you for your report!
However, this issue has been closed as a Duplicate of MCPE-27446.
Your additional information and observations are very useful, so if you can add them to the comments section of the parent issue it would be appreciated.
Quick Links:
📓 Issue Guidelines – 💬 Community Support – 📧 Feedback – 📖 Game Wiki