Occurs with 4.15.0 and 4.15.1 installed on an iMac with an Intel Iris Pro 6200 1536 MB card (8Gb RAM, 2.8 Ghz Intel Core i5, OS 10.12.3)
We are getting black flickering artefacts on surfaces (especially those close to the camera edges) in the viewport and PIE. We are also unable to set transparency on the object selection highlight. Finally, the game icons/ billboards (player start etc) show as chequered as if selected.
This is in new blank projects and new FPS templates both with no adjustments (haven’t tested any other templates).
Reading around the forums some of these are known issues (e.g. the highlight issue) and there are several places where people advise against Intel Iris Pro cards.
Can anyone explain what the issue is with the Intel Iris Pro cards? The recommended specs just say Open GL 4.1 cards and the Apple support page says that this card is Open GL 4.1: Mac computers that use OpenCL and OpenGL graphics – Apple Support (AU)
Is there an older version of UE4 that would be more stable with this card? Going back to 4.14 seems to fix the black flicker but not the highlight issue (Note: I haven’t tested anything complex yet just the new projects and some simple materials).