Hello,
We recently moved to UE5.6 from 5.4 and noticed that the project packaging process seams to be broken.
We are on source build and build the project for windows and all Consoles.
UE5.4 does always build a correct standalone build on all platforms. Same project in 5.6 with no code changes and in the cooking stage we frequently get Access Violation error hinting to some blueprint cast.
But even with verbose logging there are no details on any file. We validated and recompiled every Blueprint in the project.
We can restart the cook process multiple times and in roughly 1 out of 10 times it successfully completes and we can build the standalone version.
This leads us to be leave there is no problem with our project and rather the engine.
A fresh engine install, cleaning of saved, intermediate and other generated folders does not change the results.
For testing UE5.5 does also produce the same error with the same frequency.
5.4 is as previously said not an issue.
Does anyone know what changed in between this versions or if this is a known issue?
We would need to move to newer UE versions due to consoles…