Missing songs in 'All Music' playlist

Volumio Information

Volumio Version: v2.915
Hardware: Pi4b
DAC: Schiit Modi 3+

Hi! I am very new to this environment, but I have a stable UPnP share on foobar2000, but when I go to view my music, about 30% of music is there, but I am missing thousands of songs in that full list. My Yamaha networked receiver has no problem shuffling through 100% of that. I want to use Volumio, but I must be missing a “maximum” playlist setting somewhere I can’t find.