"Fixed up invalid landscape material instances. Please re-save" error CRASH

Development World Creation
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1

I work on my own project in two pcs with Azure DevOps repository. All went good until now. I get this error because i put some holes in the landscape to make a cave. I started getting these when i created and added the Landscape Hole Material.

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I don’t know how can i re-save the external actors.
I don’t know if it’s because of those errors but in my high-end pc Unreal Editor crashes almost immediately once i start it, meanwhile in my low-end pc i can stay editing the level for ages. The map check says 0 errors/warnings but it crashes… I need help so i can keep on working remote and collaborative, thanks in advance!

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2

I have the same here, wish somebody would post a fix.

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3

Did you fix or give up stil getting these.

thx

4

Still getting these , mate! Im into other issues right now but will try to solve this issue again soon…

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5

Same here in 5.6 and 5.7, LandscapeStreamingProxy_1_0_0 Fixed up invalid landscape material instances. Please re-save /Game/ExternalActors/ThirdPerson/Maps/ThirdPersonMap/7/ER/1PX8ONS4CLAHZXIM1VJKQL.

6

I am having same issue, anyone have a fix? help us!!!