Logic X Play head disappeared

When I started Logic pro today the playhead was suddenly missing. It was fine two days ago.

I've looked online for help and did as some suggested.

I tried changing screen sets and removing the plist file but nothing works.

Something has changed but I have no idea what.

I haven't had a software update on either my system or logic.

Can anyone help?

I'm on a 2012 macbook pro.

OSX 10.12.6

Logic 10.2.3