Can't open H264/MPEG4 with Avidemux 2.6.8

[douche]

Installed both x86 and x64 latest windows version 2.6.8 of Avidemux, but I get an error open trying to open an mp4 and mp4a file.  Both files can be played by VLC.  From VLC the video file is:

Codec: H264 - MPEG-4 AVC (part 10) (avc1)
1920x1080
Frame rate: 23.976023
Decoded format: Planar 4:2:0 YUV

and the mp4a shows:

MPEG AAC Audio (mp4a)
Stero
44100 Hz

I want to use Avidemux to combine these into a single video, but trying to open either file generates an error:

"No stts table"
"Attempt to open <filename> failed!"
"Could not open the file"

The message is the same for both files, even though one is video and the other audio.

Windows 7 SP1 x64 24GB
i5-3750k, Intel HD 4000 display adapter

[cliffshit]

Maybe these are DASH files from youtube?

Try ffmpeg http://ffmpeg.org/download.html
and use command line ffmpeg -i input.mp4 -i input.mp4a -vcodec copy -acodec copy output.mp4

[canteditvideo]

Better late than never, @cliffshit that command works like a charm! Thank you!

(ffmpeg-4.2.2-win64)