Question about charge blade's guard points in GU

So I mained CB in rise/sunbreak and world/iceborne and I recently got GU on the switch and I wanted to play CB but I noticed that whenever I try to guard point by doing the morphing into axe GB it works but my hunter still morphs into axe mode as if the attack just goes trough me

this is not how it works in previous game I played but I watched some gameplay and saw people pull it off the usual way, any ideas ?

also what's the closest hunter style to world's CB because I'm not a fan of savage axe or very gimmicky stuff