Filter box border not displaying
I've got a 1pt border around all of my filter list boxes but, suddenly, only 3 sides are showing on some of them. The filter version is 2.2.3. They were working properly last week.
For example, as shown on the attached screenshot, on a narrow grid, 2 of the filters that are 5 cells wide stopped showing the left border, another one stopped showing the top border and another stopped showing the bottom one (red arrows). If I widen or narrow the filter box, the border comes back but as soon as I put it back to 5 cells wide, it disappears again. Other filter boxes are working normally (green arrow).
Anyone have any ideas why this might have occurred?