Missing songs when sync playlist from navidrome

Issue description:

I’m using Navidrome as server, and when I sync playlist from navidrome, some songs in the playlist missed. I checked the playlist in Navidrome, it has those songs missed in symfonium, and play correct.

Here is one of the playlist with missing songs, I have marked those synced song in EXTINF line with -----------synced

#EXTM3U
#EXTINF:-1,halcyon - BLÜ EYES-----------synced
../BLÜ EYES/halcyon/halcyon - BLÜ EYES.flac
#EXTINF:-1,Scarborough Fair - Sarah Brightman-----------synced
../Sarah Brightman/The Very Best of Sarah Brightman 1990-2000/Scarborough Fair - Sarah Brightman.flac
#EXTINF:-1,Papa Was a Rodeo - Sara Lov-----------synced
../Sara Lov/I Already Love You/Papa Was a Rodeo - Sara Lov.flac
#EXTINF:-1,Lonely - Nana-----------synced
../Nana/Nana/Lonely - Nana.flac
#EXTINF:-1,Ce train qui s'en va - 伊莲(Hélène Rollès)-----------synced
../伊莲(Hélène Rollès)/Ce train qui s'en va/Ce train qui s'en va - 伊莲(Hélène Rollès).flac
#EXTINF:-1,I Will Always Love You - Whitney Houston-----------synced
../Whitney Houston/I Will Always Love You/I Will Always Love You - Whitney Houston.flac
#EXTINF:-1,The Day You Went Away - M2M-----------synced
../M2M/Shades of Purple/The Day You Went Away - M2M.flac
#EXTINF:-1,Seven Years - Norah Jones
../Norah Jones/iTunes Originals/Seven Years - Norah Jones.flac
#EXTINF:-1,Jeanne - Laurent Voulzy-----------synced
../Laurent Voulzy/Florilège/Jeanne - Laurent Voulzy.flac
#EXTINF:-1,いつも何度でも - Hayley Westenra
../Hayley Westenra/Hayley Sings Japanese Songs 2/いつも何度でも - Hayley Westenra.flac
#EXTINF:-1,Cathedral - Cocoon
../Cocoon/Where The Oceans End/Cathedral - Cocoon.flac
#EXTINF:-1,Let's Talk About Love - Céline Dion-----------synced
../Céline Dion/Let's Talk About Love/Let's Talk About Love - Céline Dion.flac
#EXTINF:-1,I'll Be Your Strength - Simone-----------synced
../Simone/Dreams Do Come True/I'll Be Your Strength - Simone.flac
#EXTINF:-1,You for Me - Terra Naomi-----------synced
../Terra Naomi/To Know I'm OK (Deluxe Version)/You for Me - Terra Naomi.flac
#EXTINF:-1,Think Of Me - Rosi Golan-----------synced
../Rosi Golan/Gypsies & Drifters/Think Of Me - Rosi Golan.flac
#EXTINF:-1,Aloha Heya He (Karaoke Version) - A-Type Player,Achim Reichel
../A-Type Player_Achim Reichel/Deutsche Karaoke Hits, Vol. 7/Aloha Heya He (Karaoke Version) - A-Type Player,Achim Reichel.flac
#EXTINF:-1,Free Loop - 甘草片r-----------synced
../甘草片r/Free Loop/Free Loop - 甘草片r.flac
#EXTINF:-1,It Don't Matter To The Sun - Rosie Thomas
../Rosie Thomas/If Songs Could Be Held/It Don't Matter To The Sun - Rosie Thomas.flac
#EXTINF:-1,Electric Bird - Sia
../Sia/Some People Have Real Problems/Electric Bird - Sia.flac
#EXTINF:-1,I'm Your Man - Leonard Cohen
../Leonard Cohen/Greatest Hits/I'm Your Man - Leonard Cohen.flac
#EXTINF:-1,What Have I Done? - Joshua Hyslop,Anna Scouten
../Joshua Hyslop_Anna Scouten/Where The Mountain Meets The Valley/What Have I Done? - Joshua Hyslop,Anna Scouten.flac
#EXTINF:-1,sense (is) - hemlocke springs
../hemlocke springs/the apple tree under the sea/sense (is) - hemlocke springs.flac
#EXTINF:-1,Astronauts - Rachel Platten
../Rachel Platten/Wildfire/Astronauts - Rachel Platten.flac
#EXTINF:-1,Stick with Me Ba - Alison Krauss,Robert Plant
../Alison Krauss_Robert Plant/Euro Xclusive 08_33/Stick with Me Ba - Alison Krauss,Robert Plant.flac
#EXTINF:-1,A Contre-Courant - Alizée
../Alizée/Mes Courants Electriques/A Contre-Courant - Alizée.flac
#EXTINF:-1,Wall of Sound - Charli xcx-----------synced
../Charli xcx/Wall of Sound/Wall of Sound - Charli xcx.flac
#EXTINF:-1,Colombia - Anjulie
../Anjulie/Anjulie/Colombia - Anjulie.flac
#EXTINF:-1,All the Way Around - Ali Lohan
../Ali Lohan/All the Way Around/All the Way Around - Ali Lohan.mp3
#EXTINF:-1,Early Winter - Gwen Stefani
../Gwen Stefani/The Sweet Escape (International Version)/Early Winter - Gwen Stefani.flac
#EXTINF:-1,Sky Blush - Matilda Lucas
../Matilda Lucas/Sky Blush/Sky Blush - Matilda Lucas.flac

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Upload description: Snide4

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Media provider:

Subsonic

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The song ids are unknown to Symfonium you probably forget to sync first.

It worked! Should I sync manager first every time I sync playlist?
Is it because I download songs in the new playlist everyday, and Symfonium unknown the new downloaded song’s id?

Yes Symfonium needs to know the songs. If you import the playlists as online first or read only the will be always up to date after a sync no need to do 2 things.

Understand. Thanks!!!