It now functions as a pushbutton instead of a checkable/toggle button.
A possibly relevant merge request was started @ https://invent.kde.org/multimedia/elisa/-/merge_requests/489
Git commit 3e3271a489075ee83249f3e8031b41ae2c0dd551 by Jack Hill. Committed on 17/09/2023 at 15:47. Pushed by ngraham into branch 'master'. Fix playlist button not being checkable Seems like the action's checkable was overriding button's own checkable property M +1 -1 src/qml/MediaPlayerControl.qml https://invent.kde.org/multimedia/elisa/-/commit/3e3271a489075ee83249f3e8031b41ae2c0dd551