From the root actor (which will be similar to the name of the imported file name.udatasmith), move everything to a folder or another actor. I’m talking about Outliner. After that, “Not used in any level” works
From the root actor (which will be similar to the name of the imported file name.udatasmith), move everything to a folder or another actor. I’m talking about Outliner. After that, “Not used in any level” works