Crazy crash happening in 5.3: "LogRHI: Error: Breadcrumbs 'RHIThread'"

But if it was a problem of GPU, wouldn’t the crash also occur when I play locally (without using a dedicated server)?

I got recommendation (from another social channel) to set r.Streaming.PoolSize in render settings to a high value. I had it at 1000, and then changed it to 30000. But the crash still happens.