Player floating up glass blocks exposed to water.

Whenever I go near a diagonal wall of glass blocks I placed, my player seems to climb up the wall. In third person mode you cannot tell unless you angle the camera to face the player, and move the player such that the camera hits the glass block. I have attempted recreating this glitch in other underwater circumstances however I presume I have not done it correctly as this problem is not evident. If someone could please look into this it would help all those who enjoy underwater windows. Thanks!