A consequence of this seems to be that, during the death animation of the mount, the rider has entity collision but not yet block collision. So the temporarily dismounted-but-not-dismounted rider, no longer moored to the dead mount, can be "pushed" by other entities into/through solid blocks until the dismount sequence has been completed.
Can confirm on Mac (MacOS 11.6, Minecraft Java 1.18.2).
Did you accidentally press F1, which toggles the display of the HUD (on/off)?
After exploring several mushroom islands in multiple worlds (1.18 Pre-release 8), it seems as though red mushrooms are very rare in general. I count dozens of patches of brown mushrooms for each patch of red mushrooms.
Confirmed for 1.18 Pre-release 6, though the cause may now be different due to the new world generation.
I've added a screenshot of a shipwreck that generated completely on land, entirely within plains/forest biomes (for all y levels).
Keep in mind that oak leaves generate in clusters around a single jungle log in jungle biomes. These leaves will of course drop oak saplings rather than jungle saplings.
I agree that it's likely the light level. You can always use the new light block by filling the layer directly above the wheat with light[level=9] or greater. Note that the wheat will not grow unless the level is 10 or greater.
Do you have the world seed and coordinates?
Can confirm similar behavior. On my machine (older MacBook Pro), 1.17.1 runs in full-screen mode for a few minutes before kernel_task goes bananas and the game comes to a crawl. Exiting full-screen mode corrects the behavior. Returning to full-screen mode causes the cycle to repeat (few minutes decent performance, then overly high CPU usage).
Fiddling with video/Java settings has had no effect.
I can confirm. I have found several of these mis-generated fortresses.
Checked some more worlds. Found more eroded badlands with all colors of terracotta, but the layering is more separated, seems less representative of strata.
Can confirm that something seem...amiss...with generation of eroded badlands. They look much less colorful and inviting than before. I've checked several generations in various worlds, and have found both red and yellow terracotta, but yellow only generating at y=105,106.
In previous versions, the block above the crop needed to be light level 9 or greater, which means the crop block itself could be light level 8. Im not sure when this changed exactly, probably in a 1.14 snapshot.
Duplicate of MC-9523