Any ideas as to what happened to my custom landscape material?

Hello, I’m new to this forum so I’m not sure if this is the right topic for this question.

Has anyone got any clue what happened to my landscape material here?

(In-Game)

(Here’s what it looks like in the editor)

For some reason it keeps doing this in-game but in the editor it looks perfectly fine, Any help with this is massively appreciated.

Thanks, MBroNetwork.

Could it be that the in-game graphics settings differ from the editor?
Try changing the quality presets through console commands during game play and see if it fixes the problem. (could it be a bad mix of lumen reconstruction and up-scaling of the internal renderer?)