5.1.1 update problem

[lucoiso]

If you’d like to give it a try, these steps seem to have fixed at least one of the issues:

Unreal Engine 5.1.1 update Crash

There are a lot of errors and warnings like Attempted to access index 0 from array ‘…’ of length 0 TConvex ‘…’ has no Geometry Failed to compile Material Instance with Base ‘…’ for platform PCD3D_SM5, Default Material will be used in game. Failed to load ‘…’: Can’t find file. Failed to load package for import object ‘Package …’ Exporting geometry with too many verticies (1960200). This might cause performance and memory issues. Simplify collision or change GeometryExportVertexCountWarningThres…

Unreal Engine 5.1.1 update Crash

Yep, add this line to Config/DefaultEngine.ini and try opening the project again to check if will continue crashing r.AntiAliasingMethod=3

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Related to: 5.1.1 + TSR = crash