App icon (logo) not visible and not in Latest, Categories

I have created a new issue to separate possible updates from #1458 (closed)

Rem: the following problem is not due to cache or my change to the icon. The icon is the same since several versions.

Problem: I can't see my app icon (logo of 512x512):

• 'The Light' logo is no more visible on the web site and in fdroid.

• More over the app is no more listed in Latest tab! (it needs to be solved for the visibility of the app)
  Maybe same problem here

• I don't know if the app icon is visible and usable on Homescreen

• Maybe other apps impacted

Possible cause: you transformed the app icons

Rem: My Google version of the app has no problem