[bug] Water System and World Composition

I noticed a very annoying bug when working with Water in World Composition. I now have 41 sublevels. When I created this lake, some were missing and I added them later. Now, if load new sublevels and old ones that have not yet been touched, the landscape begins to distort as in screenshot 2.

I tried to remove water and re-create and the same thing happened. When I move the water, the hills in the distance change height along with the water.

At the moment, I have not found a solution to the problem other than not loading this sublevel along with the new sublevels.

I would be glad if you can tell me how you can fix this.

After a while, I found a solution to the error.
In total, you need to turn off Blur Shape in the properties of water (in my case, WaterBodyLake) in the section “Terrain → Effects → Blurring”

You saved my Project. Thanks