Observed Behavior
Generated seagrass can overwrite blocks of ice in frozen biomes.
Expected Behavior
Generated seagrass should let the ice layout intact.
How to reproduce
Version: 1.21
Seed: -953538683905638291
Coordinates: /execute in minecraft:overworld run tp @s 22428.278 63 -1640.890 150.1 44.2
Linked issues
Attachments
Comments

Please always provide the seed and coordinates.

-3663419213315141181
/tp @s 1568 ~ -1184

Confirmed for 1.13.1.
Coords: /tp @s 1709 64 -1210 200 50
Seed: same as desc.
(1568 ~ -1184 teleported me to land)

Can I give up ownership of this ticket to someone else?
Confirmed for 19w13b
Can confirm in 20w51a.
Can confirm in 21w03a.
Can confirm in 21w05b.
Can confirm in 21w06a.
Can confirm this in both 1.17.1 and 21w44a.
[media][media]This also appears to affect kelp as well and not just seagrass.
Version: 1.17.1
Seed: 6284615873921193244
Coordinates: /execute in minecraft:overworld run tp @s 499.92 64.04 -832.87 -672.92 51.91
Version: 21w44a
Seed: -7206245882723273550
Coordinates: /execute in minecraft:overworld run tp @s -3799.22 63.20 -3089.73 171.02 46.81
I'd like to request ownership of this ticket since the current reporter has been inactive for over a year. I'm willing to keep this report updated and will continue to provide all of the necessary information. 🙂
Can confirm in 1.18.1.
Can confirm in 1.19.
[media]Version: 1.19
Seed: -953538683905638291
Coordinates: /execute in minecraft:overworld run tp @s 22422.08 64.39 -1630.53 580.59 48.97

Can confirm in 1.19.3

Confirmed in 1.21.3
Relates to MC-128329