Catastrophically loud notes on playing

Renoise 2.8

Windows 7 64 on Core i3-4005U

I use the ZynAddSubFX VST plugin for all instruments.

In most cases everything works fine.

But when playing some files the volume of instruments begins to go off-scale, abnormally loud.

It’s probably the OS caused bug: on XP the playing process is clear of such “bursts”. And on 7 the same files work equally bad.

Some audio soft on win7 generates loud noise bugs too.