When trying to play on a single biome ocean world (any ocean type) it does not load just an ocean it loads a plains biome. these worlds have structures that are usually only found in the oceans (like shipwrecks). when opening the F3 menu it says you are in an ocean biome even though you are obviously in the plains.
Thank you for your report!
We're actually already tracking this issue in MC-236884, so this ticket is being resolved and linked as a duplicate.
However, that ticket has been resolved as working as intended, which means that this will not be fixed as it is not considered a bug.
Please be sure to use the search feature before creating a ticket to see if the issue has already been reported.
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