Color tagging using TotalFinder 1.15.1 with MacOS 14.1 Sonoma works for old tagged files, not new ones

Colored tags are retained on some older files but are converted to grey band with colored dot on others. Tagging a new file always results in a grey colored band with selected color as a dot; adding a second tag results in two colored dots on grey band. However adding a second tag to a normally colored file (i.e., no grey band) works. Removing grey tag from TotalFinder preferences does not make any difference. Uninstalling and re-installing 1.15.1 does not make any difference.