I know that it was a post with the Thunkable icon from start screen that it shows for a few moments. I don’t find it now, sorry and I still have this issue.
And also, I have 2 different icons for the same app, 1 icon on the screen and 1 icon as the app it is send it to the background. Please see the images.
I want to publish some apps now and I would like to have a solution.