Official Support Area, Q&As, Discussions, Suggestions and Bug reports.
Forum's Guidelines
I guess you are using Mac, we notice this "permission" issue happens with some of our users as well. We are finding solution to this issue but have not found yet. The only solution is to use the Unarchiver.
Let KoolReport help you to make great reports. It's free & open-source released under MIT license.
Download KoolReport View demo