# Problem with water post process effect in many lanscapeStreamingProxy

**URL:** <https://forums.unrealengine.com/t/problem-with-water-post-process-effect-in-many-lanscapestreamingproxy/2525241>\
**Category:** World Creation\
**Tags:** ocean, Open-World, unreal-engine, WorldPartition, question\
**Created:** [May 23, 2025, 11:19pm UTC](https://forums.unrealengine.com/t/problem-with-water-post-process-effect-in-many-lanscapestreamingproxy/2525241 "2025-05-23T23:19:55Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Vaheva](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/vaheva/32/963466_2.png) [@Vaheva](https://forums.unrealengine.com/u/Vaheva)\
**Post date:** [May 23, 2025, 11:19pm UTC](https://forums.unrealengine.com/t/problem-with-water-post-process-effect-in-many-lanscapestreamingproxy/2525241/1 "2025-05-23T23:19:56Z")

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Hello  
I have an error starting underwater postprocess for Ocean in some LandscapeStreamingProxy on a level with World Partition.

- In about 1/2 of the ocean the underwater effect is visible, in the rest it is not
- the effect does not appear in neighboring LandscapeStreamingProxy
- approximately it concerns LandscapeRegion\_0\_0 and andscapeRegion\_1\_0, but not exactly
- I do not know if it is a bug or a matter of some settings. On my other test Open World level everything is correct

The last thing I would like to do is replace Water Body Ocean with a new one, because I have a complicated coastline and it is laborious (I also do not know if it will bring the effect).

I have had the level for many months, I think the error appeared during some update. I am currently working on version 5.5.4

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<div class="post-metadata">

**Author:** ![Vaheva](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/vaheva/32/963466_2.png) [@Vaheva](https://forums.unrealengine.com/u/Vaheva)\
**Post date:** [May 23, 2025, 11:41pm UTC](https://forums.unrealengine.com/t/problem-with-water-post-process-effect-in-many-lanscapestreamingproxy/2525241/2 "2025-05-23T23:41:57Z")

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I removed all Landscape Region actors, it not helps.

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<div class="post-metadata">

**Author:** ![Vaheva](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/vaheva/32/963466_2.png) [@Vaheva](https://forums.unrealengine.com/u/Vaheva)\
**Post date:** [May 24, 2025, 1:02am UTC](https://forums.unrealengine.com/t/problem-with-water-post-process-effect-in-many-lanscapestreamingproxy/2525241/3 "2025-05-24T01:02:32Z")

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The ocean was not where it was visible and it would seem - solved.