Is there an existing issue for this?

• I have searched the existing issues

Current Behavior

Polar bears do not spawn on ice blocks

Expected Behavior

According to the wiki they should be able to https://minecraft.fandom.com/wiki/Polar_Bear

Which platforms have you reproduced this issue using?

Forge Single Player

OTG Version

OpenTerrainGenerator-1.16.5-0.1.10

Platform Version

No response

Steps To Reproduce

You can test this by teleporting to a frozen ocean in the default preset.

If ice blocks are replaced to grass they begin spawning, so the problem must be spawning on ice

Log file

No log

Anything else?

No response