Hello ,
we have setup of vmix 4k version 20.0.0.42 + blackmagic quad2 + magewell quad on windows 10 pro + GTX1080TI

we can see issues that when changing the presets from on to other , close vimix and change to other preset, so after close . the vmix process stays in the task manager with about 600 MB ,
for each time we close the vimix we have another process so its can be unlimited until the computer is crashed , also sometimes the sdi blackmagic inputs not working after the preset change ,
but if we kill all process everything works great .

please help this is urgent issue !

thanks ,
Osher