Weird shadow flickering

Hello Guys,
After baking lightmass when I run the scene these shadows are keep appearing and disappearing in my scene.
and this is happening only then when I am baking it without compression.
can anybody tell me why I am getting this kind of problem.

I did encounter the same problem a while ago. I was able to solve this problem by increasing the streaming pool size using editor’s console command r.Streaming.PoolSize 2000 or higher (the default is 1000).

As far as i know, your graphic card is always trying to stream higher fps. When it goes out of memory, it uses pregenerated mipmaps (low quality/size) for every texture, starting with lightmaps. Get rid of high res textures and try using lower res texture maps (1024x1024 for example) to free some space. Also follow tupikp advice.

Thank you for your reply.
I will do as you and said. Hope this will solve the issue.

tupikp i am new in unreal and i am not aware of console commands. Can you tell me where I need to write that command?

Just press the tilde (~) button on your keyboard. After the console window is opened, just type the command

Got it.

Thank you…