Not saving in latest version

I have started using Trimble connect, and when I download models that were done on my iPad, the fun begins as it saves the models on my computer as a 2020 model. No matter what I do, it will keep saving it as a 2020 model even if I give it another file name.

Can you show a screenshot where it says 2020 model?

All of the files in this project have reverted to an older Sketch-Up version even the ones that were not from Trimble Connect

It looks like a mess, but probably something is screwed up in the register.
Try installing the latest Viewer or SketchUp Pro and actually open a file.

Thank you, I will do that.