Offline playlist - some songs won't sync

[Vin-hair]

Anyone else having this problem? I have a list on around 406 songs on my phone, I added a few 5 more tracks on this list last night, but my phone says that I havent added any new songs to the playlist. 
This isn't only a problem with my phone tho, it is also a problem when sharing the playlist. 
My friends also say's that the playlist does not update nor on their computer or phone. 
anyone else struggeling with this problem?

EDIT: 
Energia Klastrobia
The bottom songs are 
Corey Taylor, Dave Grohl... - From Can to Can't - Sound City - Reel to Real
RDGLDGRN - I Love Lamp
The Winter Brave - Metaphors

please, if you can see these 3 last songs, please tell me, because non of my friends or anyones phone can.

[Joe]

Hi there seems to be a problem with larger playlists at the moment. The solution for now is to create a new empty playlist then move the tracks from the old playlist in batches of less than 300.

[Vin-hair]

I just kinda wish they fixed this problem since their motto is "Music on the go" and it is, but then again, it is and is not when the lists won't update....