I upgraded to Mac OS High Sierra last week and there is a big annoying double-click issue with Apple Magic Mouse. I have to double click several times in different speeds to rename a track, when opening the MIDI editor window etc. Its is unpredictable whether double-click works or not. It’s really a big issue and need to be addressed ASAP.
MacBook Pro (Retina, 15-inch, Mid 2015), 2.8 GHz Intel Core i7, AMD Radeon R9 M370X 2 GB
Intel Iris Pro 1536 MB, 500GB SSD, upgraded to High Sierra from Mac OS El Capitan from App store.