Traktor 3.5.1 "collection invalid" error, backup outdated, all playlists gone

MIQQQI

Hello hi,

I have an issue I've never encountered with Traktor Pro before. I'll provide all the necessary/recent details that may be relavent.

Yesterday I had Rekordbox analyze one of my major playlists (~450 tracks), then imported 20 of them onto a flashdrive for a gig with CDJs.

I renamed all subfolders in this collection on windows to end with the file extension, as that made a difference for the CDJs. I auto-relocated on rekordbox with no issues.

Today also relocated with traktor, and it found all the tracks.

I then thought I had a technical issue: flashing "SNAP" light on the hardware, turns out it wanted more power from my laptop as it stopped when I plugged the laptop in.

I remember the last time I had an issue, running Setup Wizard helped. So I ran it again. On the next restart, when I loaded tracks (from the playlist mentioned above), I got an error about bpm-detection due to missing transient files and "please analyse first".

All of these tracks have been previously analyzed. Loading automatically analyzes. Just in case, I ran the majority of the playlist through Async again - right click, "analyse (async)".

Every track made the bottom of Traktor Pro flash red with the same error about transient files missing and please analyse first.

I let it finish trying to analyze all of them and restarted the software.

I got an error about my collection being invalid, and now all of my playlists are gone.

Thankfully I was overdue for a major clean-up, but it is still very very annoying. I can't seem to find a clear answer online about this. I've created a ticket, and figured I could learn more by reaching out to the community.

My questions are:

1. Why the bpm-detection error loop with analysis?
2. Did the renaming of subfolders, and auto-relocation change something?
3. Did anaylsing them with rekordbox change something?
4. Why did my ENTIRE collection of playlists disappear, and most importantly, how do I prevent/restore this if it happens again?

I'm attaching the error for invalid collection. My backup file name says that it is outdated.

collection_backup_invalid - Copy.7z

lord-carlos

What do you mean by the backup is outdated?

Traktor creates a backup whenever you close it. ~/Documents/Native Instruments/Traktor x.x.x/backup should have a ton of older collection.nml files that you can copy.