When making a selection on the canvas and bringing my mouse down to the bottom,
the document would auto scroll downwards allowing me to make additional selections as and when objects were revealed in view.
Alternatively I used to be able to make a selection and use my mouse wheel to scroll the document.
Both of the above features in the recent Affinity Designer for Windows update have appeared to stopped working V1.8
(just checked and can confirm this has also stopped working in Affinity Photo, however it worked in previous versions for both Photo & Designer)