Aquifiers sometimes create air pockets

We do not have enough information to reproduce this issue.

Please provide the following information about the world you are playing in as text. Attaching a screenshot showing them is not enough.

• World Type:

  • "Default" if you have not chosen one when creating the world.

  • For "Superflat": Additionally provide the generation preset.

  • For "Buffet": Additionally provide the generator type and biome you have selected.

• Additional generation settings (in case you changed them): E.g. "Generate Structures", "Bonus Chest", ...

• Seed: Can be obtained by using the /seed command and clicking on the message in chat

• Coordinates: Can be copied to clipboard by pressing F3 + C

_{This issue is being temporarily closed as Awaiting Response. Once the requested information has been delivered, the report will be reopened automatically.}

Quick Links:
📓 Bug Tracker Guidelines – 💬 Community Support – 📧 Mojang Support
📓 Project Summary – ✍️ Feedback and Suggestions – 📖 Game Wiki

Here's another one:
seed: 8904409384666195513
coords: -1454, -13, 630

Worldtype: Default, no additional settings

i already seen a lot of broken world generator like: grass, tall grass and trees in air, water not flowing, sugar cane without water near, grass and tall grass in sand, etc...