Started Campaign Tutorial.
I only see UI elements (mission messages, triangle markers), but none of the units nor the terrain: i.e. 99% black screen.
Audio working fine.
How comes? Is a patch underway to fix this graphics issue?
MacBook Pro (15-inch, Mid 2012)
2.3 GHz Intel Core i7
Intel HD Graphics 4000 1536 MB
El Capitan 10.11.5
Same issue filed at https://steamcommunity.com/app/281610/discussions/0/351660338729439176/ as well.