New 430.64 driver broke VK_KHR_multiview (still works with 419.67)

I’m writing a very basic Vulkan + OpenVR application, and I am using the VK_KHR_multiview extension for the stereo rendering. With driver 419.67 it still works perfectly fine, but with 430.64 only one view (index 0) is rendered.

HW is an i7 6700, RTX 2080 FE, Win 10 Pro x64 1809, Vulkan SDK 1.1.85