me/tracks consistently returns 502 for user with many liked songs

[Morganic1]

Hi, I have a user using my app who has about 48000 liked songs. When I try to make a call to  https://api.spotify.com/v1/me/tracks?offset=0&limit=1 on behalf of the user, i.e., retrieving the latest liked song for the user, I consistently get 502 returned within 600-1000 ms. The threshold before this occurs seems to about around 20000 liked songs. 

I have previously been able to retrieve the liked songs for users who had this amount of songs, so I figure there was a change recently that made it malfunction?

Thanks in advance.

[Lethalpaintball]

Really annoying that this is still happening. It feels like we bickered for years to remove the liked songs limit - only for liked songs to be virtually unusable when you go past it.