I know now AttachParent is private, but how do I set it ?
AttachTo() should work fine.
I use SetupAttachment() for components
Yeah, by the looks of it, SetupAttachment() would be the better option for setting up the attachment parent of a component in a classes constructor.
[TABLE="class: highlight tab-size js-file-line-container"] if (ensureMsgf(!bRegistered, TEXT("SetupAttachment should only be used to initialize AttachParent and AttachSocketName for a future AttachTo. Once a component is registered you must use AttachTo.")))
Thank you @Larraz