Mismatches detected

[abaibaihaqi]

How to fix this

Track 1 mismatch: codec_name h264 != aac
Track 1 mismatch: width 720 != none
Track 1 mismatch: height 1392 != none
Track 1 mismatch: pix_fmt yuv420p != none
Track 1 mismatch: level 40 != none
Track 1 mismatch: profile High != LC
Track 1 mismatch: sample_fmt none != fltp
Track 1 mismatch: r_frame_rate 45000/1 != 0/0
Track 1 mismatch: time_base 1/90000 != 1/44100
Track 2 mismatch: codec_name aac != h264
Track 2 mismatch: width none != 720
Track 2 mismatch: height none != 1392
Track 2 mismatch: pix_fmt none != yuv420p
Track 2 mismatch: level none != 40
Track 2 mismatch: profile LC != High
Track 2 mismatch: sample_fmt fltp != none
Track 2 mismatch: r_frame_rate 0/0 != 45000/1
Track 2 mismatch: time_base 1/44100 != 1/90000

[mifi]

It seems like your tracks have become flipped in one of your files. you could extract each stream as its own file, and then combine them together again (dropping each extracted file into losslesscut in the correct order)