Increasing the dynamic ram preview actually makes performance worse while editing and rendering. I'd leave it alone.

Increasing the dynamic ram preview actually makes performance worse while editing and rendering. I'd leave it alone.

Thanks, what should be optimum?

@tuckert Hi, video ram? If that's the one in Preferences Dynamic RAM then that will make no difference to the render.

Chroma key, or gaussian blur can be quite intensive on your PC during render, so -

Can you click your icon at the top of this page - My Profile & fill in your Signature with the full name of your CPU, GPU & amount of RAM, also inc the Windows & Vegas version, this will then show at the bottom of your comments,

Also the type of media might affect performance, there's an App called MediaInfo, download it, it's free & a fast download with no added adverts or any of that rubbish. https://mediaarea.net/en/MediaInfo
After downloading, right click on the media file in your Windows folder, open MediaInfo, choose Text from the options at the top, Copy & paste the information in a new comment on here 👍

Like this
 

It has happened with hundrends of different videos - i have a blurred video and then chroma key over it with an animation which I have tried changing.

My PC has a Ryzen 7600, NVIDIA RTX 4070 and 32gb ram.

Also, it renders fine the second the time, and it does not always happen.

Thanks

It has happened with hundrends of different videos - i have a blurred video and then chroma key over it with an animation which I have tried changing.

My PC has a Ryzen 7600, NVIDIA RTX 4070 and 32gb ram.

Also, it renders fine the second the time, and it does not always happen.

So, it has happened with hundreds of different videos, and this is your first post about it... I would have been complaining loudly if this were happening to me.

What is the version build of VP19...

It has happened with hundrends of different videos - i have a blurred video and then chroma key over it with an animation which I have tried changing.

My PC has a Ryzen 7600, NVIDIA RTX 4070 and 32gb ram.

Also, it renders fine the second the time, and it does not always happen.

So, it has happened with hundreds of different videos, and this is your first post about it... I would have been complaining loudly if this were happening to me.

What is the version build of VP19...

 

The bulid is 651 vegas pro 19

Yes, it is super annoying - I have put up with it but enough is enough! Lets solve this

Also it would be intermittant, like I would try changing the gpu acceleration and it wouldn't be a problem for a while

Lets solve this

The next step is in your court. Please enact the request made 2 days ago by @Gid and provide a detailed MediaInfo report on a sample of the media that you are using.

Also, what is the source of your media (e.g. camera name and model), and are the FX that you are using native Vegas FX or 3rd party FX? If the latter, what are the 3rd party FX being used?