Flickering/Jumping of Frames stopping Render Vegas Pro 21

indy-p wrote on 2/28/2024, 8:52 AM

Hi,

After solving my render crashes over the last few days, which then worked fine after changing Options settings.

Today, I needed to fix an edit error in the same video and when I went to render it, it started to do this strange thing:

 

In the editor, the subtitles are jumping/flickering all over the place as well. Missing frames/jumping them.

Any ideas on how to fix this?

Regards,

Indyp

 

Comments

bitman wrote on 2/29/2024, 5:05 AM

@indy-p Did you enable 2 pass by any chance? It is disabled by default, normally it would improve quality if enabled (at the expense of render time), but I had a real bad experience in a recent project in one particular scene (flicker in trees in the background) using the Vegas render with 2-pass so I will never use it again. I have not had time to report this yet...

I have good results using voukoder as render option, so maybe read up on how to install and use this alternative render option in Vegas...

APPS: VIDEO: VP 365 suite (VP 22 build 194) VP 21 build 315, VP 365 20, VP 19 post (latest build -651), (uninstalled VP 12,13,14,15,16 Suite,17, VP18 post), Vegasaur, a lot of NEWBLUE plugins, Mercalli 6.0, Respeedr, Vasco Da Gamma 17 HDpro XXL, Boris Continuum 2025, Davinci Resolve Studio 18, SOUND: RX 10 advanced Audio Editor, Sound Forge Pro 18, Spectral Layers Pro 10, Audacity, FOTO: Zoner studio X, DXO photolab (8), Luminar, Topaz...

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indy-p wrote on 2/29/2024, 6:11 AM

@bitman

Thanks for your reply. I've not checked the 2-pass option but will try it. I have contacted support about this issue (but waiting for replies... which I know is not going to be quick).

Voukoder? Not heard of this before. I will look into this for sure.

 

Indyp

bitman wrote on 2/29/2024, 10:24 AM

@indy-p here is more info on Voukoder:

 

APPS: VIDEO: VP 365 suite (VP 22 build 194) VP 21 build 315, VP 365 20, VP 19 post (latest build -651), (uninstalled VP 12,13,14,15,16 Suite,17, VP18 post), Vegasaur, a lot of NEWBLUE plugins, Mercalli 6.0, Respeedr, Vasco Da Gamma 17 HDpro XXL, Boris Continuum 2025, Davinci Resolve Studio 18, SOUND: RX 10 advanced Audio Editor, Sound Forge Pro 18, Spectral Layers Pro 10, Audacity, FOTO: Zoner studio X, DXO photolab (8), Luminar, Topaz...

  • OS: Windows 11 Pro 64, version 24H2 (since October 2024)
  • CPU: i9-13900K (upgraded my former CPU i9-12900K),
  • Air Cooler: Noctua NH-D15 G2 HBC (September 2024 upgrade from Noctua NH-D15s)
  • RAM: DDR5 Corsair 64GB (5600-40 Vengeance)
  • Graphics card: ASUS GeForce RTX 3090 TUF OC GAMING (24GB) 
  • Monitor: LG 38 inch ultra-wide (21x9) - Resolution: 3840x1600
  • C-drive: Corsair MP600 PRO XT NVMe SSD 4TB (PCIe Gen. 4)
  • Video drives: Samsung NVMe SSD 2TB (980 pro and 970 EVO plus) each 2TB
  • Mass Data storage & Backup: WD gold 6TB + WD Yellow 4TB
  • MOBO: Gigabyte Z690 AORUS MASTER
  • PSU: Corsair HX1500i, Case: Fractal Design Define 7 (PCGH edition)
  • Misc.: Logitech G915, Evoluent Vertical Mouse, shuttlePROv2

 

 

Former user wrote on 2/29/2024, 4:43 PM

If you hardware encoded this, ie NVENC, QSV, VCE try software encoding same sections.

I have also seen similar in first example unrelated to hardware encoding. I had maybe 5 layers with fx on many, I could not get Vegas to work properly until baked in the fx, ie pre-rendered each layer, so there were no fx in that section operating on final render. This was 2+ years ago though, not with VP21

indy-p wrote on 2/29/2024, 5:56 PM

Hi @Former user and @bitman

Thanks for your replies.

@bitman - I tried Voukoder - still the same.

@Former user

At this moment in time, I do not understand why this render has stopped working.

A few days ago it was all fine but it seems like the subtitles are the issue but not sure why or how when I have not changed anything!

You say 'baked' i.e. pre-rendered each layer (or track I presume). How did you do that?

Regards,

Indyp