Thanks for all the inputs.
OK. To install new updates to Total Finder, do I have to do the disable and re-enable of the SIP stuff?
Generally no. The component should be installed once and work. Unfortunately future version will prompt you to update
that component, because of some Apple changes introduced in our signing certificate.
When I go to the updates tab, both versions say they are up to date and “include pre-release” is activated.
Yes, this is expected. I didn’t want to push update which was related to High Sierra only to all users.
Maybe something in the pre-release got weird for OS Sierra?
I switched to Xcode 9 beta. Maybe that caused some issues.