Why when installing the application does not require permissions?

Hello to all. I have such a problem: when installing an application that has already been previously processed, I no longer require permission to access the phone’s memory, etc. Therefore, saving does not work, you can fix it if you go into the android settings, find the application and set permissions there. after that everything works again. Tell me what could be the matter. Perhaps the fact is that I mistakenly deleted line 3 in the picture, but then I returned it. Thank you.