I am having the same issue. Can't import my Poe1 save into Poe2 on a MacBook Pro.
My save file is named:
02ffac66-f2d9-4113-948f-392b894db302 gamecomplete.savegame
My save game complete file is in the folder:
~/Library/Containers/com.mpdigital.poecomplete/Data/Library/Application Support/Pillars of Eternity/Saved Games
I have also copied the completed save game to the folder:
~Library/Containers/com.mpdigital.pillars2/Data/Library/Application Support/Pillars of Eternity II/Saved Games
Both games were purchased through the Apple App Store.
I'd really love to play the game with my character from Poe1. Can anyone help?