I’m new to UE5 and I composed a shot, but I just cannot get it to export. It always crashes. The render is in 1920x1080, the PC is quite powerful with a 4080. However only 32gb of ram, which is used 100%.
I’ve tried things like turning of flush grass streaming and flush streaming managers.
Although the issue is not solved, it seems that there is an issue with the StampIT! Collection geometries. Or at the very least, it causes issues with rendering. Redoing the project without using the BP makes the renderer work.
Right, that MRQ error you are getting (Assertion failed: UploadBufferSize >= UploadBytes…) suggests the engine is dealing with an excess of geometric data, which is coming from the StampIT elements. Thus, removing them would fix the problem.
Now, if you need them for your project, check if it’s possible to turn the procedural assets into baked/static geo. That would make them easir to handle for MRQ. You can also test enabling Nanite for said assets. Or, on the contrary, if Nanite was already enabled for this geo, disable it, and test again.
Alternatively, you can check the full crash log, to pinpoint which part of StampIT is causing the problem, as it may be a single element that can be addresse, while keeping the rest of the assets.
Where To Find Local Crash Reports
Crash reports from the editor are stored on your local machine in your project’s Saved/Crashes folder.
Alternatively, you can find crash reports on a user’s local machine in C:\Users[Your Windows Username]\AppData\Local[Project Name]\Saved\Crashes.