Minecraft Preview panorama has some unloaded chunks

Summary:
On the savanna panorama in Minecraft Preview, there are some unloaded chunks in one place and it is very noticeable.

Steps to reproduce:

1. View the full panorama Minecraft Preview (paying attention to the edges of the loading).

Observed results:
In one place, there are some unloaded chunks.

Expected results:
The world for the panorama should be well loaded so that there are no noticeably unloaded chunks on the panorama.

Image: