By disabling the Vanilla datapack, and closing the world, players will find themselves unable to re-join the world without the game either automatically re-enabling it, or giving players a message demanding to enter the world in "safe mode". Also the datapack i had enabled in the world was said to be broken afterwards, even though cutting/pasting it in and out results in it working again perfectly fine. Renaming datapack also claims to fix it, but error comes up again upon re-loading.
Edit: It's worth mentioning that the error box still shows up when I remove my custom data pack from the world file.
First image shows me disabling datapack. Second shows it reenabling itself after rejoining.
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The first sentence of this report is actually the underlying issue. Just execute
/datapack disable vanillaand rejoin the world. This spams the logs with errors and prompts you to enable Safe Mode. It simply shouldn’t be possible to disable the Vanilla datapack.
Hi!
Thank you for your report!
However, this issue has been temporarily closed as Awaiting Response.
Could you please provide more details or/and media files. As we have no repro of this issue without additional files.
Could you please include the other data pack?
Could you please reproduce the issue with no other data packs in resourcepack folder?
Does the issue still occurs for data pack for 26.1.2 after disabling the vanilla data pack?
This ticket will automatically reopen when you reply. Thanks!
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Your custom data pack has an outdated pack format, causing it to get disabled.