Sorry, my bad. I'm new to macos. They are created during the Collection Creation, but this is normal behaviour by mac os itself. For all other newbies: https://apple.stackexchange.com/questions/14980/why-are-dot-underscore-files-created-and-how-can-i-avoid-them

@neuronestanco If this is with FLAC? In that case it's a known bug that has been fixed in the newest flac release.

@Mami It's not possible without modifying the source code (resource file) and png image.

Strawberry only supports AAC-in-MP4, not AAC-in-ADTS, because the TagLib library does not support it. https://github.com/taglib/taglib/issues/508

@NeoTechni2 What OS is this?

@porteous This does not tell me much, does it show any more backtrace information? Can you try to open a terminal and start strawberry by entering /Applications/strawberry.app/Contents/MacOS/strawberry and enter.

@Timpie Playlist / Add folder will only add the songs to the playlist (database), not the collection library, you need to add them via settings / collection, then re-add them to the playlist.

@tweedbeats Songs that are added to the playlist form the collection will link to the database row ID, so they share the same metadata for both the collection and the playlist, so if they are removed from the collection, it will affect the playlist too.

@silver-sun These settings are for the file watcher/scanner, not for the search, so changing them to a higher priority will probably make it worse since the GUI might lag.

@articice This looks like Tidal returns an empty cover URL for a song. Do you happen to know what album or song this happens on?

@Breep What OS is this? How did you mount your harddrive?

@kc10hydroman Its not an restriction in Strawberry. So something must be restricting Strawberry from accessing the partitions. Are you using Strawberry from the official package or PPA?

@philipl No-one answers on this forum. Bit weird given that Strawberry is such a great piece of software.

@jonas Thank you for your help and dedication! Let's see how it goes on Ubuntu/Debian's side. As an additional information, I tried on a Debian test VM I had around, with LXQt installed, and Unstable repositories. It works without any issue. $ strawberry 22:14:52.825 INFO main:167 Strawberry 1.0.10 Qt "5.15.6" 22:14:52.825 INFO main:168 "Debian GNU/Linux bookworm/sid unknown - (linux 6.0.0-4-amd64) [x86_64]" 22:14:52.899 DEBUG main:227 Style: "fusion" 22:14:52.903 DEBUG Application:257 Database(0x561360481970) moved to thread QThread(0x561360485fa0) 22:14:52.903 DEBUG SCollection:70 CollectionBackend(0x561360469ce0) moved to thread QThread(0x561360485fa0) 22:14:52.936 DEBUG Application:257 AlbumCoverLoader(0x5613604ed250) moved to thread QThread(0x56136050b260) 22:14:52.939 DEBUG SCollection:107 CollectionWatcher(0x561360502750) moved to thread Thread(0x561360502030) with I/O priority 3 and thread priority 0 22:14:52.939 DEBUG TagReaderClient:56 Using 2 tagreader workers. 22:14:52.939 DEBUG Application:257 TagReaderClient(0x561360521740) moved to thread QThread(0x561360500090) 22:14:52.939 DEBUG NetworkProxyFactory:52 Detected system proxy URLs: ("", "", "", "") 22:14:52.940 DEBUG WorkerPool<HandlerType>:264 Using worker "/usr/libexec/strawberry-tagreader" 22:14:52.940 DEBUG WorkerPool<HandlerType>:309 Starting worker 0x7fd090ff9f30 "/usr/libexec/strawberry-tagreader" "/tmp/strawberry_510004701" 22:14:52.943 DEBUG WorkerPool<HandlerType>:309 Starting worker 0x7fd090ff9f30 "/usr/libexec/strawberry-tagreader" "/tmp/strawberry_1138396723" 22:14:52.950 INFO main:57 TagReader worker connecting to "/tmp/strawberry_510004701" 22:14:52.951 DEBUG WorkerPool<HandlerType>:331 Worker 0x7fd064007180 connected to "/tmp/strawberry_510004701" 22:14:52.952 INFO main:57 TagReader worker connecting to "/tmp/strawberry_1138396723" 22:14:52.952 DEBUG WorkerPool<HandlerType>:331 Worker 0x7fd064008d90 connected to "/tmp/strawberry_1138396723" 22:14:52.957 DEBUG Engine::Base:154 SOUP_FORCE_HTTP1: ON 22:14:52.976 WARN GlobalShortcutsManager:206 No global shortcuts enabled. 22:14:53.527 INFO Player:930 Registered URL handler for "subsonic" 22:14:53.533 DEBUG InternetServices:48 Added internet service "Subsonic" 22:14:53.533 INFO Player:930 Registered URL handler for "tidal" 22:14:53.549 DEBUG InternetServices:48 Added internet service "Tidal" 22:14:53.549 INFO Player:930 Registered URL handler for "qobuz" 22:14:53.565 DEBUG InternetServices:48 Added internet service "Qobuz" 22:14:54.567 DEBUG MainWindow:346 Starting 22:14:54.784 DEBUG CoverProviders:106 Registered cover provider "Last.fm" 22:14:54.785 DEBUG CoverProviders:106 Registered cover provider "MusicBrainz" 22:14:54.785 DEBUG CoverProviders:106 Registered cover provider "Discogs" 22:14:54.785 DEBUG CoverProviders:106 Registered cover provider "Deezer" 22:14:54.785 DEBUG CoverProviders:106 Registered cover provider "Musixmatch" 22:14:54.785 DEBUG CoverProviders:106 Registered cover provider "Spotify" 22:14:54.785 DEBUG CoverProviders:106 Registered cover provider "Tidal" 22:14:54.785 DEBUG CoverProviders:106 Registered cover provider "Qobuz" 22:14:54.801 DEBUG LyricsProviders:105 Registered lyrics provider "AudD" 22:14:54.801 DEBUG LyricsProviders:105 Registered lyrics provider "Genius" 22:14:54.801 DEBUG LyricsProviders:105 Registered lyrics provider "Lyrics.ovh" 22:14:54.801 DEBUG LyricsProviders:105 Registered lyrics provider "LoloLyrics" 22:14:54.802 DEBUG LyricsProviders:105 Registered lyrics provider "Musixmatch" 22:14:54.802 DEBUG LyricsProviders:105 Registered lyrics provider "ChartLyrics" 22:14:54.823 DEBUG MainWindow:397 Initializing player 22:14:54.926 DEBUG MainWindow:407 Creating models 22:14:54.926 DEBUG MainWindow:414 Creating models finished 22:14:54.929 DEBUG DeviceLister:67 CddaLister(0x5613609c7db0) moved to thread QThread(0x5613609d6ca0) 22:14:54.929 DEBUG DeviceLister:67 Udisks2Lister(0x56136094d640) moved to thread QThread(0x5613616a58c0) 22:14:55.055 DEBUG DeviceLister:67 GioLister(0x5613616a58e0) moved to thread QThread(0x5613607eec00) 22:14:55.058 DEBUG logging:85(GLib-GIO) Using cross-namespace EXTERNAL authentication (this will deadlock if server is GDBus < 2.73.3) 22:14:55.060 DEBUG Application:257 PlaylistBackend(0x5613607eb570) moved to thread QThread(0x561360485fa0) 22:14:55.064 DEBUG logging:85(GLib-GIO) Using cross-namespace EXTERNAL authentication (this will deadlock if server is GDBus < 2.73.3) 22:14:55.065 DEBUG Application:257 RadioBackend(0x56136193e3a0) moved to thread QThread(0x561360485fa0) 22:14:55.066 DEBUG RadioServices:67 Adding radio service: "SomaFM" 22:14:55.067 DEBUG logging:85(GLib-GIO) Using cross-namespace EXTERNAL authentication (this will deadlock if server is GDBus < 2.73.3) 22:14:55.067 DEBUG RadioServices:67 Adding radio service: "Radio Paradise" 22:14:55.068 DEBUG MainWindow:434 Creating UI 22:14:55.075 DEBUG logging:85(GLib-GIO) _g_io_module_get_default: Found default implementation gvfs (GDaemonVfs) for ‘gio-vfs’ 22:14:55.108 DEBUG ScrobblerServices:48 Registered scrobbler service "Last.fm" 22:14:55.108 DEBUG ScrobblerServices:48 Registered scrobbler service "Libre.fm" 22:14:55.108 DEBUG ScrobblerServices:48 Registered scrobbler service "ListenBrainz" 22:14:55.108 DEBUG ScrobblerServices:48 Registered scrobbler service "Subsonic" 22:14:55.262 DEBUG MainWindow:861 Creating playing widget 22:14:55.310 DEBUG MainWindow:913 Loading settings 22:14:55.728 DEBUG MainWindow:1044 Started QThread(0x561360306ff0) 22:14:55.736 INFO DeviceManager:449 Device added: "/dev/sr0" ("/dev/sr0") So maybe it is an Ubuntu (or KDE) specific bug.

@jonas Thanks! Changing the extensions worked fine. Sorry for taking so long to respond; I didn't have notifications set up for this forum.

Try running Strawberry from the command line. Its verbose output might provide some clues as to whats going on.

@juanito Thanks. I think i did that correctly.

And more annoyingly (to me), when one of these collection updates is going on, all my songs appear as never having been played, even though I can see that the in the .db file they appear with the correct data. This means that if I play one of the songs in the collection (e.g. by loading a file from command line), its "last played" and "times played" data will most likely not be updated. So far, once the update is completed, everything seems to work fine, but I am fearing the day when such an update will wipe all the stats for no good reason...