White screen in the video playback box
Hi,
I have an issue with Premiere Pro CC on my Macbook. System reboot does not help. Tried different clip formats, result is the same. Intro tutorial has the same issue.
Please advise.

Premiere Pro version: 12.1.1 build 10
OSX: 10.13.4
CPU: 2,7 GHz Intel Core i7
Memory: 16 GB 2133 MHz LPDDR3
Graphics: Radeon Pro 455 2048 MB

