Artist order is reversed on some collaboration tracks

What's happening:

On tracks with multiple artists, the artist list is sometimes in the wrong order. The featured artist shows up first instead of the main artist. This doesn't happen on every track — it seems to depend on how popular the featured artist is.

Example:

PinkPantheress (artist 233567) released an album called Fancy Some More? (album 59167236). She is the album artist on every track. But some collaboration tracks show PinkPantheress first (correct) and others show the featured artist first (incorrect).

Correct order (PinkPantheress first, as expected):

• "Illegal + Anitta" → PinkPantheress, Anitta

• "Girl Like Me + Oklou" → PinkPantheress, Oklou

• "Tonight + JADE" → PinkPantheress, JADE

• "Stars + Yves" → PinkPantheress, Yves

• "Noises + JT" → PinkPantheress, JT

• "Romeo + Ravyn Lenae" → PinkPantheress, Ravyn Lenae

• "Romeo + Rachel Chinouriri" → PinkPantheress, Rachel Chinouriri
  

Reversed order (featured artist first, incorrect):

• "Illegal + SEVENTEEN" → SEVENTEEN, PinkPantheress

• "Nice to Know You + Sugababes" → Sugababes, PinkPantheress

• "Stateside + Kylie Minogue" → Kylie Minogue, PinkPantheress

• "Stateside + Bladee" → Bladee, PinkPantheress

• "Stateside + Zara Larsson" → Zara Larsson, PinkPantheress
  

The pattern:

The reversed tracks all feature bigger or more well-known artists (SEVENTEEN, Kylie Minogue, Zara Larsson, Sugababes). The correctly ordered tracks feature smaller artists. This suggests the artist list might be getting sorted by popularity or follower count somewhere, instead of keeping Spotify's original order.

Why this matters:

Spotify sets artist order intentionally — the first artist is always the main artist. When stats.fm changes this order, collaboration tracks can show up under the wrong artist. For example, "Stateside + Zara Larsson" appears as a Zara Larsson track instead of a PinkPantheress track, even though it's on PinkPantheress's album.