Hi there! I'm new, and first of all excuse me for my possible english flaws (i'ts not my native language).
Thanks to developers for great software!

I'm starting vMix, adding input as local video file.
Start playing - everything is ok, video and sound.
When i push pause button it starts buzzing - looks like last milliseconds of sound repeatedly plays from buffer.
I has not make any changes in codecs tuning, all settings are defaults (i guess).
Windows 10 (upgraded from Win7), Core i5, Lenovo laptop B560.
What's possibly goes wrong?

Thanks.