I was able to find a solution to this issue that will require a patch/update to the libnfsidmap version 0.26.
Please see reference to another user that experience the issue.
I confirmed after custom compiling and using the newer lib's .so file that the naming convention was normal. One directory timed out when I did a chown but after fixing the file permissions to a user inside AD it seems to be working alright.
Can you please patch libnfsidmap to use version 0.26 to fix this bug? Thanks!