Totally anecdotal, but since WASAPI performance has degraded for me on two machines since installing the 2004 update, I’m wondering if that is the common denominator. I suddenly get frequent “dropouts” where VCV Rack falls silent for a moment. I’ve watched it in Task Manager, and it seems to occur when the System Interrupts task is using a noticeable amount of CPU. And you have to be quick to spot it as it lasts for only a moment.
IRQ line exhaustion ?
Windows: Line-Based vs. Message Signaled-Based Interrupts. MSI tool. | guru3D Forums
I followed this to change the interrupt mode for my NVIDIA RTX 2060 super pci-e gfx card - I have less problems with audio (USB Behringer Uphoria 1820) after the change.
EDIT: The MSI mode actually changed back after the last Nvidia driver install , and I didn’t notice. YMMV