Hi Wungun, just spotted your thread - sorry for coming in late
I have this issue. It has followed me on various computers since early v18. That was XP on a laptop. I've tried win7 through v18 and early 19 on an Intel i3 NUC. Then 2012R2 and v19 on a i5 NUC. "Buffering..." and crashes unfortunately. 2012R2 with no AV or any other interfering programs. At the moment I do not use MC because of the instability. I am hoping JRiver at some point can track down where in the code this problem is and get it fixed.
In the mean time I mostly use LMS and squeezelite. Never crashes. I also test MC19 on Linux, but it is a bit 'rough' at the moment even if it has made real progress lately.
Only stereo audio, Intel 53427 NUC, 2012R2, 8Gig mem, SSD, dedicated to MC, no screen keyboard or mouse, no AV, DSP studio (convolution and parametric EQ) enabled, JRemote, USB connection to Stello U3
Hard to imagine if it's a software issue, more people aren't effected...