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@Mantas-Puida, As you suggested, I disabled cache server, and now unity isn't hang up anymore till now. (Unity 2017.1.1p3). Thanks.
@Mantas-Puida, Ok, I will submit bug report. And Yes, I use integrated Cache Server (Cache Server Mode : Local)
I just have upgraded to macOS 10.13 High Sierra. And It caused Unity to extremely unstable. Whenever I open my project (it works very fine in...