Map zoom and sidebar scrolling interfere
The map extension, which is shown in the file properties sidebar, uses scroll wheel to zoom. But the sidebar scolling up/down takes over when scrolling with mouse over the map. The only way to zoom the map is to collapse all other sidebar items (properties, metadata, histogram, etc) so the sidebar has no scrollbar, and then map can be usable.
Another issue, which I'm not sure if related or not, so I'll describe here, is that the map gets drawn outside the window when sidebar is scrolled up.