I am having a similar issue. I have a playlist of 112 tracks, some local files, mostly Tidal, but when I select all and try to export the list to an excel spreadsheet, I end up with only about 28 entries. I can’t figure any rhyme or reason as to what’s included and why the others are excluded. This is on a MacBook running OS Sierra 10.12.4 and Roon 1.2 (build 223).