Warden leans back without looking knockback resistance.

So, I wanted to do a warden vs ender dragon battle. But a good battle did not come out. I'll explain right now. When I summoned Warden, everything was going fine. Ender crystals I broke. After looking at the screenshot, you have already seen. First, Warden recoiled from Ender Dragon's attack. Okay, I gave him a repulsion of 100 million. But, it's useless! He leaned back anyway. The battle failed.