Before reporting Quran text issues, read this paragraph:

We use a highly verified digital text of the Quran provided by tanzil.net. If you want to report kasrah/fatha (+shaddah) issue, first read this article and then consider that some old fashioned Arabic fonts (like Traditional Arabic) when encounter a Shaddah+Kasrah combination, render Kasrah over base letter and under Shaddah. You can change your font to something like me_quran if you don't like this old-fashioned rendering behavior.