I’m not sure this is an exact same as your issue but I’ve got a similar issue with Set Destructible Mesh that will cause a crash with the engine. This has been bugged and is being looked into currently.
You’ve got a setup that I cannot throw together in a short amount of time on my end. I would be willing to bet that the Set Destructible Mesh node is the root issue though.
If you’re able to provide the project or reproduce with simple steps in a blank project that doesn’t require massive setup I could test then and make sure it is the same issue.
Thank you!
Tim