In that link I do not see that it is related to my problem, since both the person that the app works well and the people that the app does not work well, both download the application from both testflight and the application store.
And the part that talks about a png file, if it were this I do not see why on a similar iphone with the same version of ios 13 it works fine on one iphone and not on the other
AlexisFigo
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