Just updated to latest version. Just put an avi file into the timeline. Both Video & Audio are there in the timeline, but no video in the preview window, just Black. Had no issue with previous version.
The first and easiest thing to check is that you've got the Preview Window highlighted, not the Trimmer Window.
Yes, I did check that. I even switched it back and forth and still no change.
It might depend on what the AVI video stream is. Can you share MediaInfo for it?
General
Name: 1988 01.avi
Folder: J:\1988
Type: Video for Windows
Size: 62.29 GB (63,780,839,424 bytes)
Created: Sunday, November 9, 2025, 8:38:25 PM
Modified: Sunday, November 9, 2025, 9:15:55 PM
Accessed: Monday, November 10, 2025, 5:32:01 PM
Attributes: Archive
Media information
Stream format: AVI
Video stream #1
Video format: YUV
Resolution: 720 x 486 px
Aspect ratio: 3:2
Color depth: 10 bit
Frame rate: 29.970 fps
Bit rate: 223725052 bps
Audio stream #1
Audio format: PCM
Sampling rate: 48000 Hz
Channels: 2 channels
Bit rate mode: Constant
Bit rate: 2304000 bps
Streams
Video: 00:37:25.677, 29.970 fps, 720x486x30, Uncompressed
Audio: 00:37:25.066, 48,000 Hz, 24 Bit, Stereo, Uncompressed
ACID information
ACID chunk: no
Stretch chunk: no
Stretch list: no
Stretch info2: no
Beat markers: no
Detected beats: no
Other metadata
Regions/markers: no
Command markers: no
Media manager
Media tags: no
Plug-In
Name: aviplug.dll
Folder: C:\Program Files\VEGAS\VEGAS Pro 23.0\FileIO Plug-Ins\aviplug
Format: Video for Windows
Version: Version 23.0 (Build 302)
Company: MAGIX Computer Products Intl. Co.
I'm using a Blackmagic Intensity Pro 4K card to convert from VCR to digital. Then to Blackmagic Media Express.
Then it goes to a HD for VP23.
Media Express settings:
project Video Format: 525i59.94 NTSC
Capture File Format: AVI 8-bit YUV
AVI 10 bit YUV (This is the one I used)
AVI 10 bit RGB
AVI Motion JPEG
QT uncompressed 8-bit YUV
" " 10-bit YUV
" " 10-bit RGB
QT DVCPRO 50
DPX 10-bit RGB
I couldn't copy & Paste that info so I typed what it shows.
I wonder if it's the 10 bit that's the problem, but you said you had no problems with previous VP versions.
@ChasMc The info from Vegas properties isn't really that helpful. Suggest you download free MediaInfo which gives the important format and codec id used by the video stream... and lets you copy and paste it. Configure MediaInfo's View option to Text so it looks something like this:
General Complete name : D:\temp\ffmHD_v23(MagicYUV).avi Format : AVI Format/Info : Audio Video Interleave Format profile : OpenDML Format settings : WaveFormatExtensible File size : 1.34 GiB Duration : 30 s 731 ms Overall bit rate : 375 Mb/s Frame rate : 29.970 FPS Video ID : 0 Format : M0Y0 Codec ID : M0Y0 Duration : 30 s 731 ms Bit rate : 373 Mb/s Width : 1 920 pixels Height : 1 080 pixels Display aspect ratio : 16:9 Frame rate : 29.970 (30000/1001) FPS Bits/(Pixel*Frame) : 6.002 Stream size : 1.33 GiB (100%) Audio ID : 1 Format : PCM Format settings : Little / Signed Codec ID : 00000001-0000-0010-8000-00AA00389B71 Duration : 30 s 731 ms Bit rate mode : Constant Bit rate : 1 536 kb/s Channel(s) : 2 channels Sampling rate : 48.0 kHz Bit depth : 16 bits Stream size : 5.63 MiB (0%) Alignment : Aligned on interleaves Interleave, duration : 991 ms (29.71 video frames) Interleave, preload duration : 1000 ms
Btw, that's MediaInfo for MagicYUV which also uses avi as a container.
I tried getting Mediainfo but found it through an "app store" but didn't want to pay to get in.
I've gone through all of the capture formats this time and tried them in VP23. None of the AVI- YUV versions work, but the AVI-10 bit RBG version worked.
So I think I'll stick with that one.
I tried getting Mediainfo but found it through an "app store" but didn't want to pay to get in
Howard-Vigorita provided a link to MediaInfo (click on the blue 'MediaInfo') in his reply above. MediaInfo is free.
eneral
Complete name : J:\1988\Untitled 01.avi
Format : AVI
Format/Info : Audio Video Interleave
Format settings : BitmapInfoHeader / WaveFormatExtensible
File size : 829 MiB
Duration : 30 s 597 ms
Overall bit rate : 227 Mb/s
Frame rate : 29.970 FPS
Video
ID : 0
Format : YUV
Codec ID : v210
Codec ID/Hint : AJA Video Systems Xena
Duration : 30 s 597 ms
Bit rate : 224 Mb/s
Width : 720 pixels
Height : 486 pixels
Display aspect ratio : 3:2
Frame rate : 29.970 (30000/1001) FPS
Standard : NTSC
Color space : YUV
Chroma subsampling : 4:2:2
Bit depth : 10 bits
Compression mode : Lossless
Bits/(Pixel*Frame) : 21.334
Time code of first frame : 00:00:00;00 / 00:00:00;00
Time code source : Adobe tc_A / Adobe tc_O
Stream size : 816 MiB (98%)
Audio
ID : 1
Format : PCM
Format settings : Little / Signed
Codec ID : 00000001-0000-0010-8000-00AA00389B71
Duration : 30 s 597 ms
Bit rate mode : Constant
Bit rate : 2 304 kb/s
Channel(s) : 2 channels
Sampling rate : 48.0 kHz
Bit depth : 24 bits
Stream size : 8.40 MiB (1%)
Alignment : Aligned on interleaves
Interleave, duration : 1020 ms (30.57 video frames)
My guess is this aging plugin doesn't support 10 bit 422? Did this exact file work with 22 or an older version of VEGAS.
I didn't have theBlackmagix Capture card till after WIN 11 was changed over recently, as my older firewire card didn't work.
Is that the VP23 that has the aging plugin or my new capture card/ software?
aviplug.dll in VEGAS is quite old as far as I am aware.
The codec maker, AJA, site lists their AJA Video Systems Xena codec in their legacy section. Kind of odd that Black Magic would use that in a new 4k capture card. Maybe it's a fallback codec used only for legacy firewire capture from older vcr hardware.
Btw, if I understand correctly, you were able to use an older version of Vegas to capture via your old firewire card until you moved to win11? Older versions of win11 didn't provide the firewire/1394a driver by default and required it be downloaded from the Microsoft store... but I don't see it there anymore so newer win11 Update may now make it available again as it did with win10. You might try putting that old card back in and following the steps outlined here: https://learn.microsoft.com/en-us/answers/questions/1470327/how-to-install-firewire-in-windows-11
If that doesn't work due to the age of the card or version of win11 you have, there is a legacy driver available from current 1394a manufacturers like LinksTek and Vantec on their web sites. They recommend it only be used as a last resort. If you can get win11 to see a 1394a card with a TI chipset, then the older version of Vegas that included the firewire capture feature (no longer in vp23) should work with win11 as it did before. I went through all that myself, transferring dv tapes from an older camcorder using a really old StarTech card, and am able to edit the clips captured with the older Vegas software in vp23.
I'm experiencing the same issue. The AVI file displays fine (both timeline and preview) in Vegas Pro 20 and the preview window in Pro 23 is black. The timeline shows fine. Just upgraded from Win10 pro to Win11 Pro....but the problem was happening before the upgrade...no change. Also, tried the "opencl memory" update...no change. Here's a copy of the mediainfo:
General
Complete name : \Digibeta\N106\N106A_SD SDI1(codec UYVY 3-2 4 channels).avi
Format : AVI
Format/Info : Audio Video Interleave
Format profile : OpenDML
Format settings : BitmapInfoHeader / WaveFormatExtensible
File size : 116 GiB
Duration : 1 h 35 min
Overall bit rate : 174 Mb/s
Frame rate : 29.970 FPS
Video
ID : 0
Format : YUV
Codec ID : UYVY
Codec ID/Info : Uncompressed 16bpp. YUV 4:2:2 (Y sample at every pixel, U and V sampled at every second pixel horizontally on each line). A macropixel contains 2 pixels in 1 u_int32.
Duration : 1 h 35 min
Bit rate : 168 Mb/s
Width : 720 pixels
Height : 486 pixels
Display aspect ratio : 3:2
Frame rate : 29.970 (30000/1001) FPS
Standard : NTSC
Color space : YUV
Chroma subsampling : 4:2:2
Compression mode : Lossless
Bits/(Pixel*Frame) : 16.000
Time code of first frame : 00:58:51:24 / 00:58:51:24
Time code source : Adobe tc_A / Adobe tc_O
Stream size : 112 GiB (97%)
Audio
ID : 1
Format : PCM
Format settings : Little / Signed
Codec ID : 00000001-0000-0010-8000-00AA00389B71
Duration : 1 h 35 min
Bit rate mode : Constant
Bit rate : 4 608 kb/s
Channel(s) : 4 channels
Sampling rate : 48.0 kHz
Bit depth : 24 bits
Stream size : 3.08 GiB (3%)
Alignment : Aligned on interleaves
Interleave, duration : 1034 ms (31.00 video frames)
The video was captured using Black Magic Media Express on a Windows PC.
Any ideas?
Roger and John, I did go back & reinstalled both VP20 & VP22. Took that same video and tried it in both of them. Had no problem with either of them. So, the problem has to be in VP23.
Thanks for the careful testing confirming the issue started with 23. If there's a sample files VEGAS beta testers could access, that would be helpful. Just upload it to a service like Google Drive, etc. If you'd like to do it privately that's fine- you could message me.
Roger, I could but I don't use google on my video computer.
Okay, you can pick any service you like. Or move a file from your video computer using a USB drive.
Without a source file I wouldn't expect it to get fixed unless others report issues too.
Double checked the AVI file in both Vegas Pro 20 and 23, both on the same PC. Vegas Pro 20 the video shows fine both on the timeline and the preview window. Vegas Pro 23 the video shows fine on the timeline, but a black preview window. Other files do display fine in Vegas Pro 23. Here's a 30 second sample clip:
https://drive.google.com/file/d/1-Mcl9s5N-JV3h7N33e2hk1qiy0bbFRcV/view?usp=drive_link
Not sure if this is related. I also have another file that does not even load in v23 and have no problem in v20. Here's the mediainfo:
General
Complete name : HDcam\N218_qt1clip.mov
Format : MPEG-4
Format profile : QuickTime
Codec ID : qt 2005.03 (qt )
File size : 1.65 GiB
Duration : 10 s 677 ms
Overall bit rate : 1 330 Mb/s
Frame rate : 29.970 FPS
Encoded date : 2025-11-21 22:25:45 UTC
Tagged date : 2025-11-21 22:25:45 UTC
Writing library : Apple QuickTime
TIM : 00:59:02;22
TSC : 30000
TSZ : 1001
Video
ID : 1
Format : YUV
Codec ID : v210
Codec ID/Hint : AJA Video Systems Xena
Duration : 10 s 677 ms
Bit rate mode : Constant
Bit rate : 1 326 Mb/s
Width : 1 920 pixels
Clean aperture width : 1 920 pixels
Height : 1 080 pixels
Clean aperture height : 1 080 pixels
Display aspect ratio : 16:9
Clean aperture display aspect ratio : 16:9
Frame rate mode : Constant
Frame rate : 29.970 (30000/1001) FPS
Color space : YUV
Chroma subsampling : 4:2:2
Bit depth : 10 bits
Scan type : Interlaced
Scan type, store method : Interleaved fields
Scan order : Top Field First
Compression mode : Lossless
Bits/(Pixel*Frame) : 21.333
Stream size : 1.65 GiB (100%)
Language : English
Encoded date : 2025-11-21 22:25:45 UTC
Tagged date : 2025-11-21 22:25:45 UTC
Color primaries : BT.709
Transfer characteristics : BT.709
Matrix coefficients : BT.709
Audio
ID : 2
Format : PCM
Format settings : Little / Signed
Codec ID : lpcm
Duration : 10 s 677 ms
Bit rate mode : Constant
Bit rate : 4 608 kb/s
Channel(s) : 4 channels
Sampling rate : 48.0 kHz
Bit depth : 24 bits
Stream size : 5.87 MiB (0%)
Language : English
Encoded date : 2025-11-21 22:25:45 UTC
Tagged date : 2025-11-21 22:25:45 UTC
Other
ID : 3
Type : Time code
Format : QuickTime TC
Duration : 10 s 677 ms
Frame rate : 29.970 (30000/1001) FPS
Time code of first frame : 00:59:02;22
Time code of last frame : 00:59:13;11
Time code, stripped : Yes
Title : 001
Language : English
Encoded date : 2025-11-21 22:25:45 UTC
Tagged date : 2025-11-21 22:25:45 UTC
This file is also a capture from Black Magic Media Express viia a decklink 4K studio card on another PC. Here's the short clip:
https://drive.google.com/file/d/1mSwQ955eDz8WbVgzNDr_OqLCSmAra1up/view?usp=drive_link
Double checked the AVI file in both Vegas Pro 20 and 23, both on the same PC. Vegas Pro 20 the video shows fine both on the timeline and the preview window. Vegas Pro 23 the video shows fine on the timeline, but a black preview window. Other files do display fine in Vegas Pro 23. Here's a 30 second sample clip:
https://drive.google.com/file/d/1-Mcl9s5N-JV3h7N33e2hk1qiy0bbFRcV/view?usp=drive_link
@john-romein Could you please check this link? It appears to be to a document? Anyway it requires permissions to view that we don't have.
Just in case there is a problem with the other link where I'm having a problem loading the video in v23, and not in v20, here the link again:
https://drive.google.com/file/d/1mSwQ955eDz8WbVgzNDr_OqLCSmAra1up/view?usp=sharing