Probably not the only one experiencing this, but so far ive only seen steam notes, nothing on GoG.

Basically the issue is with the Hikaru boss fight. After landing the first hit on him he can no longer be targeted. Also if he seesw you, he will attack once and then freeze in place. He can not be attacked, so the stage can not be beaten.

I saw that you put a 1.03b update on steam that fixes this issue, and was ondering it something similar is planned for GoG.

Loving the game thus far though.

I hope we don't see GOG updates consistently lagging behind Steam updates on this title. I'm really enjoying the game.

I'm with this issue too, hope it will come to GOG soon. Will add a gif to this AFAIC.