I can't help with PT 2017 it imports just fine (Win 10 Pro) it might be I have the right Codec due to something else (i have a TON of stuff installed and unsure of what there is anymore) on that thought...

HOWEVER, it might be a QuickTime thing

I run PT 2017 on new LAPTOP (win 10 pro) and the SAME MP4 won;t import due to a "QuickTime may not be installed correctly" error and actually crashes me out

Larry


Win10Pro,i9,64GB,2TBSSD+20TBHDDs,1080TI,BIAB'24,Scarlett18i8,Montage7,Fusion 8HD,QS8,Integra7,XV5080,QSR,SC-8850,SPLAT,FL21&others,Komp.14,IK suite&others, just a guitar player-AXE FX III &FM9T, FishmanTP, MIDIGuitar2, GK2/3'sw/GI20