At some point recently the tile windows feature stopped working for me. Hence if I drag a window to the left or right of the screen it no longer fills half the screen. Similarly, dragging a window to the top does not maximize it.
Ctrl + Super + Up still maximizes
Ctrl + Super + Down still minimizes
Ctrl + Super + Left/Ctrl + Super + Right do not make the current window fill the left/right of the screen.
I am guessing this is a failed update somewhere. Does anyone know which packages to try reinstalling to regain this feature?