MacBookPro: Beta 15 won't play or save

Good morning all: I recently updated to Beta 15.0.B.046 and I keep losing playback, keyboard play buttons won't work. I select quit and it asks me to save my project, however it doesn't quit.

The project is a 5 minute multicam clip made up of three cameras shot on Canon. I also optimized the footage and haven't added any name keys or other graphics yet.

Any new releases?

Thanks,
Tolbert

My set is:
Model Name: MacBook Pro
Model Identifier: MacBookPro13,3
Processor Name: Intel Core i7
Processor Speed: 2.7 GHz
Number of Processors: 1
Total Number of Cores: 4
L2 Cache (per Core): 256 KB
L3 Cache: 8 MB
Memory: 16 GB

Try not using the ''Live Save'' same time as ''Backup Project'' I had same issue and I could only use the ''Live Save'' option in order to Save the project.