I ran into the same problem and was able to solve it.
The shared network drive must work in any directory on the local computer that must be identified from the container.
For example, Docker has a "Shared Disk", usually c: \, under which all your byfn.sh paths should be present. The second condition is that you need to run byfn.sh script with the same user who has been authenticated for disk sharing in the container. Changing the password in a Windows environment can damage existing shared drive disks with containers, which causes problems when they start.
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