Physical sound BP node error

I keep getting this error after closing the editor, but the sound works fine! any idea?

It means that by the time you come to use those nodes on the reference, it’s no longer valid.

Are you calling that spawn node more than once? If so, you can give each sound it’s own variable.

Many thanks for the reply, in VR game testing it works fine, should I solve it, or its just because I run it from the editor?

The difference between the two probably means it’s some sort of timing error. Best to solve it, because it may work on some systems and not others. If it is a timing problem, you can fix it by waiting before trying to use the reference.