macOS hosted SMB drive permissions issue with hassio

I am trying to configure a Home Assistant mesh using the Apple Store distribution of home assistant server.

The task causing trouble is trying to get the network drive set up.

I have set up a user specifically for Home Assistant in the macOS host.

I can ping the host SMB macOS hosted server from home assistant, but I always get a permissions denied error (-13) showing from the home assistant console.

The console on the host machine does show smbd activity.

Permissions still fail even with firewall in the host macOS machine turned off.

Is this a compatibility issue?

Seems like macOS is blacklisting the Hassio instance, as credentials work when connecting from other machines on the network.