My Unreal Engine Editor started to lag the PC when I have Content Browser opened separately and have it set to maximized. If I manually change the window size to cover the screen as it does when it is maximized, I’m not having that problem, only if I maximize it.
When it does lag, CPU/RAM/SSD/GPU aren’t at 100%. neither of them. And as I said, it only happens when Content Browser is set to maximized.
It doesn’t need to be focused, or the only tab inside it. I tried to add an opened blueprint with the Content Browser and have that focused, but it still causes the lag.
It doesn’t seem to matter if it is showing one item, or every item inside the project (add a dot in search bar and it will show everything from the folder you selected, if Content is selected, everything from the project is showed, if a folder is selected, it will show everything from that folder and its subdirectories). It has the same effect, and only matters if it is maximized or not.
It might be a problem from Windows, and because I only noticed it with UE, I thought it is from it. I’ll post an update when I find the problem and a fix.
I was in a long vacation and I haven’t continued the project since, now I’m back and I have an update.
The problem is with Unreal Engine, and it is not related to Content Browser like I thought, because I closed it (don’t know why I haven’t tried that first), but rather to having 2 UE windows set to maximized, and them being on 2 different monitors.
On the main monitor I have a window with the game level, and what else I’m working in that moment, and on the second monitor I have a window with the resources (classes, assets, content browser…) that I need.
If both windows are set to maximized then it causes the Windows to lag. If one of the windows is set to resized then the problem doesn’t manifest. If both windows are on the same monitor then the problem also doesn’t manifest. They both need to be on different monitors and set to maximized.
Like I mentioned on the main thread, none of the resources are at 100%, not even close.
I checked VRAM maybe having them set to maximized because of a weird bug it was using 100% of it, but it is fine, ~47% usage with other stuff running as well, DRAM is fine too with ~30% usage and the CPU is under 15% usage with no core staying at 100%.
Hey @Valentinvis
Which version of the Engine are you using? The only thing I’ve been able to find close to this issue was a forum post about UE4 eating up their processing power, so they manually ended the tasks and cleared their cache.
But, this could also just be a GPU bottleneck, so depending on your computers specs, it may just be struggling.
I hope this can help!
-Zen
@Valentinvis
Strange. I’ve been seeing a bunch of issues regarding the way the new editor interacts with the computer. I’ve seen a couple of posts that mentioned updating the shader driver to DX12, some that require a .NET Core update, and some that require graphics driver updates. It seems like it’s spotty across the board, though, because some people have had success with just re-verifying their engine. It’s also very possible it’s an engine bug.
I hope some of this can help!
-Zen
That was the first thing I tried when it started to lag, but no luck. I’ll just use the window from second monitor in resized mode until UE 5.2 is released, as it doesn’t bother me, after all I can make it the same size on the screen as if it is maximized, and maybe it will be fine then.
