Hi Sean, thanks for getting in touch, I really appreciate that.
I thought it was going to work this time, when it was done installing 4.10 I launched it, and it got as far as showing me my projects. I clicked on my existing 4.9 project, and made a copy to 4.10. And then installed Substance plugin. now when I try to launch, it is getting stuck at 9% again.
Is there anyway of removing substance plugin now that I have installed it?
It could of course be coincidence however.