One Second Delay between Front and Rear files

[Zackw419]

I've used lossless cut to merge all my Front cam files into one and all my rear cam files into one. Once I load these two single files into the editor - there is a 1 second delay between the files. What could be the cause? Is it Lossless cut?

Both cams run off the same central unit (Viofo A139).

How do I fix this?

 

[1CEB1]

You could try AVIdemux to test if its software related