FCPX rendering freezes whole system

Hello! I am desperate in need of help - Every time I am rendering h264 in fcpx, compressor, or, sometimes, when I launch Netflix - whole system just freezes - no mouse, not even a reset button is working( It usually happens somewhere in the middle or end of a long file. Sometimes even short render freezes((( Maybe someone can look into my config or console log to see what's wrong?? my work depends on it( Thanks in advance!

My specs intel i7-4771 Asus z87 plus AMD Radeon rx 580 + Intel HD Graphics 4600 High Sierra 10.13.1

submitted by /u/Pakhalchuk
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