I'm afraid your examples confused me, but I will help you with something else. Please note the following: One of the uses of present perfect is to emphasise something what that has just happened. Would it be possible to use present perfect in all my examples below as they all are about something what that has just happened ...
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Tanner92One of the uses of present perfect is to emphasiseMore precisely perhaps, to report a currently relevant update of a situation. I don't think "just happened" is quite enough to bring in the present perfect. Besides, tsomethingthat something has just happened.