From an Ubuntu 16.04 VM running in Parallels 13.3.0 on Mac OS 10.13.4, I can read files and directories under the Mac user /Home directory. However I cannot edit or create files, even though I appear to have write permissions. (I can however edit it from the Mac).
For instance, on my Mac, I have:

While on my VM I have:

I also cannot change group ownership:

Note the "nogroup". Also note how I cannot remove the file, and the strange error upon trying chmod (file.txt is an empty file by the way):

I see the same behavior when I install the Linux Mint VM that comes with Parallels. It seems that something is wrong or problematic on my Mac, but I have no clue what.
For instance, on my Mac, I have:
While on my VM I have:
I also cannot change group ownership:
Note the "nogroup". Also note how I cannot remove the file, and the strange error upon trying chmod (file.txt is an empty file by the way):
I see the same behavior when I install the Linux Mint VM that comes with Parallels. It seems that something is wrong or problematic on my Mac, but I have no clue what.