Rail roads get blurry a few blocks in front of the player. This blur is visible on foot, boat and minecarts.
The blocks under the rails were stone bricks (in the picture) and packed ice (in another corridor).
The rails farther from the player should be loaded the same as shown near the player in the picture, without a blur.
Environment
Rail roads and corridors in the Nether and in the End. I haven't tried in the Overworld.
Thank you for your report!
We're tracking this issue as MC-303458, so this ticket is being resolved and linked as a duplicate.
That ticket has already been resolved as Won't Fix, which means this is considered a bug but won't be fixed. The description of that ticket or the comments might explain the rationale. Please do not leave a comment on the linked ticket.
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