Hey there @liyangyang0901! Could it be that your landscape is being checked for HLODs? This has been the case for a couple questions I’ve seen recently:
@SupportiveEntity Thanks for your reply. In my map, there is only some meshes, no landscape. It always happens when I try again and again. The GPU memory used increases quickly and then the build process crash.
In the log file, I can’t find the reason why. only the screen capture like this
Hrm, try to build an empty map and gauge how low the VRAM usage is, it could be a 5.1 specific issue with the HLOD mapping. I haven’t been able to replicate these spikes on my build.
Absolutely, I can’t seem to reproduce it exactly, but having decent spikes nonetheless. I’ve seen a few issues with HLODs recently because they had some changes and don’t apply to all objects quite yet. However that seems to be bleeding into other aspects. 5k actors isn’t the highest I’ve seen even in previous builds.
I think you’re right, it’d be best to go ahead and report it, and if it’s an inefficiency introduced with 5.1 the team might be able to zero in on it easier.