Can get CTrader to build and run cbots????

So I've been away for 3 years and i freshly installed the latest ctrader 4.2.22

So none of the demo cbot do anything when i try to back test any of them. The backtest downloads the data it needs the first time and just does nothing and hangs... i press the stop button and try again, and it still does nothing

Also if i create a new cbot. it wont build???? No .algo file is created in robots folder and red star on build button remains. I then can't create an instance for it as its not build and the instance option is greyed out. In fact all the option except for edit in Visual Studio and show in folder are greyed out.

Does anyone have any idea what is going on????