I know this is from some time ago, but I only found this just now.
What I had to do was install Windows Explorer into the same bottle as Marmoset. I don't know why, but that worked. The only thing that doesn't work correctly is the depth of field adjustments. I also have to "reboot" that bottle at least once every time I start it up to get it to work, but once it's open it works fine.
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