This seems to be an intermittent bug and we are still looking for a way to consistently reproduce it.
If anyone is still facing this problem consistently with one of their projects, please contact the support team and they will attempt to reproduce the problem using your project. Please provide the platform (iOS, Android) and the build type (debug, release, simulator) that the problem is occuring with. In general, this seems to be showing up mostly with iOS.
@j4hangir The support team have tested your project for this problem but the icon was showing correctly. If you are still having the problem, please let the support team know with the information listed above. The support ticket replies go the email of the account used to create the ticket - if this is different for you, please also pass this to the support team. They can also email you directly until the problem is solved.