Hi there, thank you very much, that solved the problem, I can at least use the others for now.

Hi there, my login works fine on either V9 or V10, no problems.

I took the simplest project I could by creating a new project with simply "begin" and "End" in it. I f I compile to C in V9 alls good. The C code including the includes and all it there. All Great.

If I do exactly the same procedure ...

I downloaded V9 on Wednesday 25th 2023 and installed it with the pack for ESP32 as well as registered.

I then saw V10's release on the 26th January 2023 and downloaded that, when I want to compile the code to C, or Target or anything its says :
/*
You do not have a valid licence to perform this ...