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 commentGlenna Hagerman commented
I have the same issue as Karen McDonald. I am using MAC OS High Sierra 10.13
When I go to package in InDesign Creative Cloud, my packaging window's width is huge, and I can't grab the corner to correct it. Any ideas?