Now Playing Widget size problems

Describe the bug
I have a problem with my Now Playing Widget - it changes its size and there is very little I can do about it. As you can see in the first photo, widget can't hold even full title of the song, so you could assume this is what settings call "Max length line". The problem is, it apparently isn't. Next photo shows you other song, with the same settings and you can clearly tell, that the size of the widget has changed. And basically it does it everytime song changes throughout my playlist.
Why isn't it keeping static size all the time, while almost every {title} - {artist} - {album} combination should be long enough to fill max length. Am I doing anything wrong?
Affected input device (e.g. MacBook Trackpad, Magic Mouse/Trackpad, Touch Bar, etc.):
MacBookPro 2017 | Touch Bar


Device information:

  • Type of Mac: Macbook Pro 2017 13"
  • macOS version: 10.14.5
  • BetterTouchTool version: 2.862