I had Fusion 360 for a while. I thought I had downloaded the free version - but after 6 months I think it was I lost my license. I could still use the software to create, but I couldn't do anything with it - not save or 3d print. Apparently I only had a free trial.Any ideas what I did wrong. I liked the software. Or any suggestions for free software that is better?I'm pretty proficient with 3d modeling - I use Creo (ProE) at work, but I need something for my personal computer.