This happens only when the KeyboardAwareScrollView contains many elements more or twice the screen height. if you tap on the last element and when the keyboard hides it scrolls to the top...
Please see the gif down below to understand:

enableResetScrollToCoords={false} might help the problem, while there are still issues with InputTexts which at the bottom of the View.
@MonFig @pinkladywithcoco This bug caused by RN 0.56
Check this commit:
Fix currentlyFocusedField by Removing this usage in TextInputState
Seems an upstream issue, should be resolved with the July version of RN.
Most helpful comment
enableResetScrollToCoords={false}might help the problem, while there are still issues with InputTexts which at the bottom of the View.