error importing mp4


I have just bought a new action camera and hitfilm express (with premium pack importing) wont import my files. it reconises them as supported, but when i import them, it just comes up with error. 

There is noting wrong with the file because i can play it on my computer. 

The details of my files are: 

Format : MPEG-4
Format profile : JVT
Codec ID : avc1 (avc1/isom)