Spotify won't correctly size the window on portrait 2nd monitor after Windows 10 creators update

[garymartynuk]

I have a 2560x1440 main screen and 2 1080x1920 portrait monitors (one each side) after the WIndows 10 creators update Spotify will no longer render a window on the side monitors that is greater in height that the centre monitor.  I fyou maximise the spotify window the top 3/4 renders, but the bottom 1/4 shows the desktop, however the window itself has increased, the player controls are off the bottom of the rendered area, it just does't display the bottom 1/4 of the window (in my case the pixes from 1441 -> 1920 on the vertical axis just get cut off). 

Seems the redered portal size and the logical portal size are different.  So now I can't maximise or manually increase the window size beyond about 3/4 of my side screens otherwise the player controls vanish.

[miskidomleka]

Same here. I just chatted with tech support, and they say portrait is not supported at the moment. They told me they submitted an internal request.

[mattertater]

Also have this issue. I reinstalled it a little couple weeks ago and then it worked for a little bit, but since then I've updated and it's back to not working again. 

[baileywickham]

I have this issue as well. The interesting part is that I can get it to fit into my portrait monitor by closing and reopening the application. If I then want to move it back to my main monitor it will be incorrectly sized until I close and reopen it.