I'm currently running Elementary OS Loki 0.4 on my Dell Inspiron 5566, and I just ran into an issue where I simply can't edit the names of any file or folder if I use the pre-installed pantheon-files app.
I tried the Nemo/Cinnamon file manager, and file renaming works fine in that app. I was about to just switch over to that since it seems like a more robust app than pantheon-files, but Nemo also gave me one major issue. Whenever I launch Nemo, an un-interactive Desktop window shows up and doesn't go away until Nemo is completely closed. I've tried searching to see if there's a solution to this, but I couldn't find anything.
I've tried uninstalling pantheon-files from the app store and reinstalling it. That didn't help. I've tried removing it with the --purge function from the Terminal, and reinstalling it, and that didn't work either.
At this point, I just want one of them to work without having to reinstall the entire OS. The only thing I know for sure, is that it was working fine before I tried installing emulationstation, and as I was installing it, I went to my pantheon-files to create some directories, and that's when I noticed it didn't work. I'm not sure if something I did while installing emulationstation broke it, but that's when I noticed it.
Let me know if you need any more info from me.