Here's another thread on a similar if not identical issue: Premiere Pro CC Crashing when Scrolling Through Sequence in Timeline - Audio Waveform Goes Blank First.
In order to keep the discussion centralized, please post the following there:
- information about your system
- a crash log
If the Renderer is set to use GPU acceleration, please switch to Software-Only [File>Project Settings>General]. Also, if the pulldown menu for the Renderer shows both CUDA and OpenCL, try both of those options.