Week arrow buttons no longer work

When loading, if I click the left arrow to go back a week it instead moves me back in time two weeks. If I then click forward a week it brings me to last week, but then will not move forward any longer.

For instance, it's now week 11. Clicking the left arrow takes me to week 9. Clicking the right arrow takes me to week 10, afterwards I can no longer navigate weeks.

At this point I need to close the tab and open a new one, navigating to Weekplan, in order to return to the current week (reloading the current tab has no effect).


Coincidentally, this was found when trying to add items to my list without having them disappear or reorder themselves from the order I had initially chosen. It seems/seemed that jumping back a week, and then returning to the current week, "refreshes" the current week's list so that my changes are properly displayed.