https://bugs.documentfoundation.org/show_bug.cgi?id=139605
--- Comment #4 from mdrRE rarymet <[email protected]> --- Students and teachers often find that the content of some math formulas disappear while writing at other location. The vanishing equation phenomenon is a result of an optical illusion called Troxler fading, which makes stationary https://www.dissertation-service.org/sociology-dissertation/ objects appear to fade or disappear when they are not in focus. If you blink your eyes rapidly, then stare at something that is not moving for 10 seconds, you will see what we mean by "fade". This effect can be seen with text too. -- You are receiving this mail because: You are the assignee for the bug.
