Issue with composition playback

Opened up After Effects this morning and created a new comp as usual, but instead this has happened. No matter what I put in the compositon nothing is viewable. It also won't play even if there is something in the timeline. This happens both from a completely new project or when I make a comp in a previous project. The odd thing is if I load up an old project it plays and works just fine until I make a new comp. I have troubleshooted with some stuff already, re booted, purged memory etc. But any suggestions would be greatly recieved!

Video to show what's happening - https://youtu.be/cvhPSR3Cnwk