Parenting Attachments Bug

Hey!

I’m trying to figure out the reason as to why when parenting attachments to HumanoidRootPart they don’t actually parent, if you look at the gif https://gyazo.com/96fe35cfd14ff83ce88d42eb7cd2f3f5 when I initiate the combat, you can see the attachment doesn’t really stay (if you look on the right side in workspace under the humanoidrootpart), however when the dummy is dead, it parents and you can see it in the explorer tab?

If anyone knows, I appreciate if you could assist, thank you!