(Not a bug) Attacks stopped next to Shade

Fighting the Shade of the museum, whenever i got really close my melee attacks would stop. If i attacked somewhere slightly far, and it hitted, damage was made, but if i stand really close to it, pressing the attack button does nothing. Bug?

I don't think so because I can't replicate it on my end. If it was a game glitch, it would be happening for everyone. Hmmm... keep an eye on this one but will mark it for now.