OK here is the file info. BTW I can open the video file in other apps and it works just fine.

General
Complete name                            : C:\Users\Cooke\Documents\Music\Danny Ziemann 1st call bassist roadmap\WIN_20210112_07_51_56_Pro.mp4
Format                                   : MPEG-4
Format profile                           : Base Media / Version 2
Codec ID                                 : mp42 (mp41/isom)
File size                                : 818 MiB
Duration                                 : 6 min 21 s
Overall bit rate mode                    : Constant
Overall bit rate                         : 18.0 Mb/s
Encoded date                             : UTC 2021-01-12 12:51:56
Tagged date                              : UTC 2021-01-12 12:51:56

Video
ID                                       : 1
Format                                   : AVC
Format/Info                              : Advanced Video Codec
Format profile                           : Main@L4
Format settings                          : CABAC / 1 Ref Frames
Format settings, CABAC                   : Yes
Format settings, Reference frames        : 1 frame
Format settings, GOP                     : M=1, N=30
Codec ID                                 : avc1
Codec ID/Info                            : Advanced Video Coding
Duration                                 : 6 min 21 s
Bit rate mode                            : Constant
Bit rate                                 : 17.8 Mb/s
Width                                    : 1 920 pixels
Height                                   : 1 080 pixels
Display aspect ratio                     : 16:9
Frame rate mode                          : Variable
Frame rate                               : 29.970 (29970/1000) FPS
Minimum frame rate                       : 9.028 FPS
Maximum frame rate                       : 102.041 FPS
Original frame rate                      : 30.000 FPS
Standard                                 : Component
Color space                              : YUV
Chroma subsampling                       : 4:2:0
Bit depth                                : 8 bits
Scan type                                : Progressive
Bits/(Pixel*Frame)                       : 0.286
Stream size                              : 809 MiB (99%)
Encoded date                             : UTC 2021-01-12 12:51:56
Tagged date                              : UTC 2021-01-12 12:51:56
Color range                              : Limited
Codec configuration box                  : avcC

Audio
ID                                       : 2
Format                                   : AAC LC
Format/Info                              : Advanced Audio Codec Low Complexity
Codec ID                                 : mp4a-40-2
Duration                                 : 6 min 21 s
Source duration                          : 6 min 21 s
Bit rate mode                            : Constant
Bit rate                                 : 192 kb/s
Channel(s)                               : 2 channels
Channel layout                           : L R
Sampling rate                            : 48.0 kHz
Frame rate                               : 46.875 FPS (1024 SPF)
Compression mode                         : Lossy
Stream size                              : 8.77 MiB (1%)
Source stream size                       : 8.77 MiB (1%)
Encoded date                             : UTC 2021-01-12 12:51:56
Tagged date                              : UTC 2021-01-12 12:51:56
mdhd_Duration                            : 381863
 

@cooke-h
Is that mp4 you giving video?
Which program and buildnumber is used?

This seems to be a common problem with that variant of the AAC codec called "AAC Low Complexity" and Vegas, upon a quick search.

Install or update quicktime and then make sure the quicktime plugin is enabled in Vegas here in Options > Preferences > Depreciated features > enable the quicktime plugin. Then restart the program and try again - I'd also delete the cached files that Vegas may create for the video in the directory the video is in (.sfk files, etc) before importing it again.

Also, on a tangent, Vegas does not do well with variable frame rate videos.

(Note I'm using Vegas Pro 17, might be a little different for you).

So I shot the original video with a Windows surface go because my Vegas video is on my desktop I sent it to Google drive and downloaded it to my desktop.

@Teagan I will try this but would better versions of Vegas have this issue? I am not against upgrading as I like the camera on the surface go.

I am not sure to be honest. I would not think it would matter due to the program versions being that similar.

The trials for Vegas Pro 18 and Media studio 18 are free to try, though.

https://www.vegascreativesoftware.com/us/free-trials/video-editor-free-download/

@Teagan hmm i do not have that option in my preferences(?)

@Teagan hmm i do not have that option in my preferences(?)

Might be because of another version of Vegas. Sorry.

@cooke-h You haven't answered what j-v asked earlier "Which program and buildnumber is used?". It would help to know so we can advise further.

Your video is variable frame rate.

That's why we need to know your Vegas version and build number.

@EricLNZ sorry. I use Vegas Movie Studio 11.0 build 75

@Musicvid sorry. I use Vegas Movie Studio 11.0 build 75