22 minute clip importing as 5 seconds in duration

I having the exact same problem. i tried EVERYTHING! WTF?!

i have 3 videos from my iPhone and another 3 videos from another iPhone. all at around 20 minutes each. they all import just fine except for one which shows up as a 5:01 second file. 

i tried to re-export from Photos, i tried starting a completely new premiere session with nothing in it. dropped and dragged the video in and still...5:01 seconds. i have 30 gig of space on my hard drive no other apps open.

I fully agree with the anger at adobe's ignorace . We pay as well a super high fee for a, so called, enterprise-support.... and get nothing since 4 weeks.....
So, I as well, would be interested what fileformat and codec you are using.... but more .... where do you store these files ?

On a networkshare (server)?
I'm asking , because , as I found out , it looks like PremierPro is checking the duration by counting the frames inside the file during import, as well as checking the amount of audiosamples.
That , as I suppose, is done until either the end-of-file OR, if something indicates that there is the end .... for example if there is a micro-timeout in reading ...either because of networking issues , or, in case adobe reads direct from the windows-cache .

In any case ... we would be very interested ... if you could provide some information about your infrastructure... so we maybe can find a workaround by ourself... adobe will not be helpfull..... and as soon a we have everything stable we definitely will quit the supportcontract .

What camera? Format/codec?

Neil