When NoxPlayer is running, it hangs the RAM Disk main program, even when I create a RAM disk from command prompt ramdiskc.exe. It seems like it interferes with RAM Disk driver. I try to create the virtual drive, and it never comes back.
We were able to reproduce this issue with Nox Player, but the cause is unclear. It could be that Nox emulator consumes a lot of system resources, so creating a disk takes much longer. We noticed that once Nox emulator is stopped, the creation of a RAM disk finishes successfully. My advice would be to create your RAM disk before you start Nox emulator.