Ice has long had visible chunk borders, that much I'm familiar with. That's half of the bug I'm reporting. The other seems to be some sort of paper thin wall that randomly generates in ocean water. Oddly, if you cause a block update to the area afflicted section, it disappears. The water wall does not however seem to do anything. Can be easily found by flying around snowy biomes (for ice) and oceans (for water walls).
Related issues
Attachments
Comments
migrated
[media][media]
Related to MC-494, of course, but since that's actually only half of the bug, it might be better to use this one.
I can confirm this, although it only happens in when Graphics is set to Fast. Setting it to Fancy fixes the problem.
kumasasa
Linked to MC-494, now we have all three combinations: Only ice, ice & water, only water