Unable to add song to a collaborative playlist using WebPlayer

[h1b2]

Using Webplayer on Windows 10, Google Chrome.

It took about 3 months for the webplayer for open.spotify to actually play music for me but that's a different saga.

When using open.spotify Webplayer, I am unable to add songs to collaborative playlists whenever I right click "Add To Playlist." Playlists that I have created are available. I am a collaborator to this playlist previously and it has not been made private and/or non-collaborative. 

[russkinz]

I found another thread where a Spotify rep said something along the lines of "We know it's an issue, it was broken during an update, we're working to fix it" - the tread was posted in November last year.

I am not hopeful they will fix it.

Edit: This tread https://community.spotify.com/t5/Ongoing-Issues/Can-t-add-songs-to-collaborative-playlists-on-Spotif...