Whispers of Infinity bug on Grace + Divine Blessing Support

I have a Grace gem inside a March of the Legion boots (Divine Blessing Support). I also have CI. Each time I cast Grace, it costs me almost my entire ES pool! It leaves about 10% ES every each Grace cast. It's almost as if I'm activating my supposed buff, only to prepare myself get 1-shoted the very next second. It didn't work like this during 3.26.

I was looking into other similar Whispers of Infinity bugs and practically, the general issue is skills are getting too much ES-costly when used with Whispers of Infinity.

There's another post that has quite a few replies on it already.

https://www.pathofexile.com/forum/view-thread/3870961/page/1