UE 5.8.1 — Use-after-free of FD3D12UniformBuffer in ValidateBoundUniformBuffer during World Partition traversal; garbage collection is the releasing agent

[lucasr94 (LucasRodriguez)]

Hey man, I had a similar issue with that same execution thread. I’m leaving my solution in this comment. hopefully it helps you. I spent four days dealing with that error, and it was incredibly frustrating.

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Hi everyone, I found the solution to my problem. I had two different triggers causing the same crash: one was related to Nanite, and the other was caused by an invalid shader. Both were sharing information through a Material Parameter Collection. Since I only have around five Material Parameter Collections in the entire project, I decided to keep them loaded at all time (Basically, what I did was create an array of hard references to the five Material Parameter Collections in the Game Instance.…