had problem on two computers (so far, we're just started) with our custom TVHost 12 installation. 1. on Windows 10 Pro x64 under domain admin, I had no rights on AssignmentData.json file in TV installation folder. 2. on Windows 7 Pro x86 under domain admin, "Administrators" group had only read rights on AssignmentData.json file. In both cases I didn't see custom logo and naturally could not use autoassign tool because it needs to access this file.
I fixed (inherited) access rights on TV installation folder, restarted TV, assigned with the tool, all was fine.
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