Hi! I am new to the forums and relatively new to vMix. I recorded a multi-camera shoot and streamed my first show this past December. It went great, and I am impressed with vMix, both for the simplicity and the depth of options available.

In the December recording, I recorded 4 cameras and a switched program with the Multicorder. I used the vMix AVI format and converted several of the files to ProRes afterward with no problems. A week later, I started to convert several more of the recordings, but vMix Media Converter returns the message "Could not create muxer: -200" in the Progress column of any file I try to convert. This holds true for any vMix AVI file on the machine. Between the time the converter worked and when it started returning the error, I had cleaned up the Windows install a little by uninstalling several default apps like the candy and farm games that come with Windows 10. It follows that I accidentally modified or uninstalled something that vMix needed.

I tried reinstalling vMix, but that didn't seem to clear up the problem.
I have also searched, but the results seem to be oriented to software development of different apps, all of which is out of the league of finding a solution for me. I would just like to get vMix Media Converter working again.

I would appreciate any thoughtful help.

Thank you,

Aaron