The issue has been fixed with Apple’s MacOS High Sierra 10.13.4 Beta (17E139).
You can try out the fix by updating your machine to the beta update from Apple.
Let us know if the issue is fixed for you after aforementioned High Sierra beta update.
An error occurred while saving the commentProntip Sandi Larson commented
I am having the same issue that everyone else on this thread is having! After updating to High Sierra, working with Indesign has become impossible. I feel that with the struggles I’m going to miss my deadline for this catalog that I’m working on. I spent an entire day trying to work through what I thought was a buggy system on my Mac. The problems range from Finder freezing, InDesign freezing, or my entire Mac just locking up. I wish I had found this thread earlier. Please fix!