Description of problem:

Context menus are sometimes invisible when they are started close to the bottom of the screen.  Sometimes the menus are visible, but the highlight is missing.


Version-Release number of selected component (if applicable):

72.0.2-1
This wasn't a problem in 72.0.1-1


How reproducible:

Sometimes.  One minute it works, the next it doesn't, without restarting the browser.


Steps to Reproduce:
1. Open a web page
2. Find a link close to the bottom of the screen
3. Right click

Actual results:

One of:
1. context menu invisible
2. context menu visible, choice/highlight invisible
3. context menu visible, choice visible

Note: it's invisible, but it reacts to mouse clicks


Expected results:

Context menu displays normally, all the time.


Workaround:

Scroll the web page, so there's enough space for the context menu to appear, and the menu will appear normally.


Additional info:

Running on Gnome/Wayland

Context menu is invisible, but it does work.  If you click on (nothing) you'll get the required action.

Invisible means no context menu, not even a white rectangle.

Sub-menus are visible if there's enough screen space to display them, even though the context menu is invisible.

Tried and replicated in Adwaita and other themes.