Spine 3899 Fix

Working with this specific version often comes with a few known quirks that developers frequently discuss in community forums:

The 3.8.99 environment includes several UI behaviors designed to reduce mouse fatigue, such as "blank space manipulation" where clicking away does not automatically deselect items. Deselection: Standard shortcuts like spine 3899

: Instead of traditional Unreal sockets, users often use the Bone Follower or Skeleton Utility components to attach objects (like weapons or effects) to specific bones. Technical Implementation Working with this specific version often comes with