v18 - Possbile Bug with Path Substitution?

Hello,

I am using Kodi 18 64 bit on Windows 10 Pro.  The system is set up with multiple profiles and pulling from a shared folder for media.  I have an advancedsettings.xml file to point the four profiles to a separate share for the stored thumbnails on an SSD. The snippet of code is like this:

    <pathsubstitution>

        <substitute>

            <from>special://profile/Thumbnails</from>

            <to>smb://Anubis/Kodi Data/Blod/Thumbnails</to>

        </substitute>

    </pathsubstitution>

Every time Kodi launches, it crashes immediately, but removing this snippet results in Kodi launching normally.  The shared folder is up and running and I can access it properly via normal Windows operations.  The version I am using is Kodi 18 release from January 28 (Git: 20190128-d81c34c465), downloaded from the Kodi web site.   I have Kodi 18 running on another machine with another copy of the same file and pointing to the same database and it works just fine, the only difference being in the skin (Aura on the non-working one, default on the other).  Changing the skin back did not fix the situation.

Has anyone encountered anything similar?

Thanks,

TD