Quick answer: Unreal Anim Blueprint additive blend with weight = 0.5 producing full effect? Additive blends in some configs ignore weight - check Apply Additive node settings.

Add a hit reaction; weight 0.5; full hit reaction plays.

Verify Apply Additive Alpha

Node's alpha input; bind to weight. Mismatched binding = full effect.

Or use a Layered Blend node

Per-bone blending; explicit weight. More control.

Audit per anim graph

Each blend's weight binding. Default may not match.

“Anim graph weight handling is per-node. Read carefully.”

If your blends don't respect weight, the binding is the bug. Document common patterns.

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