flaws in all my worlds

Thank you for your report!
However, this issue has been temporarily closed as Awaiting Response

Is this only happening on a Dedicated Server, realms, multiplayer or singleplayer? Could you please provide more details or/and media files. As such we have no repro of this issue.

Also, just a reminder, to make your bug report as effective as possible, please try and include the following steps to reproduce the problem:

Steps to Reproduce:
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Observed Results:
(Briefly describe what happens)

Expected Results:
(Briefly describe what should happen)

If your ticket does not look like the example given here, then it's likely to be closed as incomplete.

This ticket will automatically reopen when you reply.

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Cleaning up old tickets: This ticket had been set to 'Awaiting Response', but has not received a response from the reporter (~3 months+) so is being closed as Incomplete. If you feel this is still a valid issue then please comment, or create a new ticket following the Issue Guidelines which includes steps to reproduce the problem.

Quick Links:
📓 Issue Guidelines – 💬 Mojang Support – 📧 Suggestions – 📖 Minecraft Wiki