When riding a horse under a block that is 2 blocks high, the screen will turn black and you can't see.
Steps to reproduce
Place blocks like the picture attached. 3 blocks plus one from the side.
Ride your horse into the side block and everything on your screen will turn black making it impossible to see.
The bug isn't that you can go through a block with a horse, it's the blackness and you can't see anything.
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I think this works as intended, just like riding a cart through a 1 high gap will push your head into the block above.
Going by other editions, this works as intended.
(See also MC-477)

@unknown The bug here is the blackness, not that you can go through a block.
I see, thanks for making your title and description more clear 🙂
The suffocation overlay is incorrect for vehicles and mounts, including Horses, Pigs and minecarts. When these force your head inside a block, you can only see a black screen + the gui (as pictured).
Compare this to suffocating in a block that has been pushed over your head with a piston. In this case, the suffocation overlay is the inside of the block you are stuck in, as pictured in ticket MCPE-15969 (resolved as WAI).
Cleaning up old tickets: This ticket has not been updated recently (1 year+) so is being closed as Cannot Reproduce. If you feel this is still a valid issue then please comment, or create a new ticket following the Issue Guidelines.
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This issue seems to have returned in 20w14a as shown here
Â
Issue occurs both with horses and donkeys

Affects 1.16.100 (black screen) & 20w48a (albeit with an actual texture)

This is for Bedrock only. If you are experiencing this on Java please report it for this project
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