About GS#3 on golems

[Arbiter.1529]

I'm practicing Power warrior's rortation that involves GS on golems. I found that sometimes GS#3 hits more than 4 hit. For example, I have a screenshot that shows it hit 5 times.I can't understand why this happens. I'm practicing on standard size golem(not large or huge)Can someone explain?

[Josif.2015]

It all depends on the hitbox and where you started attacking with whirlwind attack. Targets with smaller hitboxes will be hit 2-3 times while targets with larger hitboxes will be hit 4 times. Whirlwind attack hitting 5 times could be either a bug or you hitting a wall and being stationary, landing every hit on the golem. It would be better if you could share the screenshot to address this issue.