[BUG?] Adding water body forces all World Partition cells to display, that raises "Out of video memory" crash

I have just downloaded the latest Unreal Engine version, and I am now seeing that you increased the maximum size of the landscape but did not fix this bug. The topic is actual, can you answer?
EDIT: and the Issues Tracker still does not show any information about this bug. The request was sent 15 days ago. Can you react to this?