Apparently the word “love” had transmuted to “lave” in the track metadata (and track filename). I changed it back, and put the corrected track back into the album folder. But Roon doesn’t seem to see the change. Do I need to re-analyze or some such?
Sorry, @dylan. I’ve already deleted the whole folder (it has four subdirectories, “Disk 1”, “Disk 2”, etc.), and replaced it with a copy that has the fixed track data (the only change is to change “Lave” to “Love” in the TITLE tag of that track, and change the filename). After doing that, the replacement shows up correctly.
That second picture above is the View File Info > File Tags for the track. Odd, isn’t it? I thought it might be an artifact of the remote I was using (Roon Remote running under Wine on Linux), so I tried it with Remote on an iPad as well. Same problem.