[Aivis Zons]

I have a suspicion that this is either a hardware related bug or Vegas purchased vs Vegas cracked bug, because it’s not something I’ve been able to recreate and I’ve only encountered it with different system specs.

Had this happen a very, very long time ago and what (I think) temporarily fixed it for me was simply zooming the timeline in/out quickly with the mousewheel. That or slightly shifting the timeline back/forth – Shift + mousewheel. Could be totally wrong though.

If you’re using an nvidia card – have you tried switching to the latest studio drivers?

+I’m wondering – does this also occur when you edit the selection by grabbing and moving the yellow triangles of a deselected region that isn’t looped? So make some arbitrary selection, click anywhere else in the timeline so the region is no longer selected, then try dragging the yellow triangle. You can then toggle the looping with Q.

Added an image for what I mean by “deselected region” / “region is no longer selected” – not looped, no vertical lines.

I feel like if it doesn’t render any lines on the sides, it should also not render any artifacts.

[Aivis Zons]

“Bézier curve (locked tangents)” or “Bézier curve (split tangents)” – found at the bottom of the list when you try to change interpolation. Set the first keyframe to bezier and you’ll have those handles to edit the curve manually as seen in my original image.

Those handles are only seen in the Curves tab.

[Aivis Zons]

Yes, click on the little drop down icon next to the Auto Ripple button (see image – circled in yellow) and select “Affected Tracks” or “Affected Tracks, Bus Tracks, …”. Then when moving media it will only affect the same track(s) that it occupies.

If it still moves multiple tracks – your media might be grouped. You can select it and press U to ungroup.

If you don’t see this option then it’s possible that it was introduced in a later version of Vegas.

[Aivis Zons]

By default no, the interpolation of the 2nd keyframe does not affect the values before it.

When you have only 2 keyframes only the setting of the first one matters.

If these keyframes are for an Effect you can switch from Lanes to Curves (see image). This will give you the best visualization for interpolation. Plus if you change the interpolation to “Bezier Curve” you will have max control over the curve.

[Aivis Zons]

Yes, Vegas Pro does have a sync tool. When you select the clips you want to sync you go to Tools -> Multicamera -> Synchronize Audio to Align Events.

Another sync tool in Vegas is meant for when you ungroup audio from video for a certain clip and have them offset. You see a red rectangle with the time offset in the top left corner of the media when this occurs. To sync them back up you right click on the video or audio segment you want to sync and click on Synchronize -> By Moving/By Slipping – whichever suits your needs.

[Aivis Zons]

Have you tried rendering in a different format? For example if you used a template from MAGIX AVC/AAC MP4 originally, try something from Quicktime or MPEG (purely random options) and see if it’s still there.

And has it happened with other projects where this intro isn’t present?

Overall my guess is that there’s an issue during the encoding process. Could also be a driver issue.

[Aivis Zons]

Red frames with Twixtor means missing footage. Let’s say your clip is 10sec long, you apply Twixtor with 200% speed – you will see red frames after 5 seconds.

From my experience with Twixtor in Vegas Pro it is very unhappy if you change the clip duration after you add the effect. Shortening/extending a clip with Twixtor added is an easy way to introduce random bugs. Hence why some people suggest applying it as a media effect, but that still isn’t the perfect solution as some problems persist.

What I sometimes do to avoid these issues is I make Twixtored files in a separate project and render them out separately. Then add those pre-renders in my final project.
For example I need a 50% slow down via Twixtor for a 5sec clip – I drop it in the timeline, cut to where I need it to start, extend to 10sec, add Twixtor, set speed % and render.

If you introduce keyframes where you both speed up and slow down time
via Twixtor it’s easy to get those red frames, because you run out of
footage or you didn’t have enough footage to begin with.

To summarize, I suggest you:

Drop your footage into a separate project, cut all the segments you want to slow down/speed up and make them as long as you can before you add Twixtor. Then render them out and use those renders in the main project. But I suggest you don’t copy and paste the files from one project to another – do it fresh, add from file explorer.

And an extra tip – you can save your Twixtor settings as a preset, remove the added Twixtor effect and try adding it again (+change settings from preset) to the same footage. Has rarely helped me in the past when I encounter those red frames.

[Aivis Zons]

If the only way for you to determine which segment of the grid you want to highlight is by listening, then I don’t see an automated solution for this that doesn’t require some custom scripts, except if you ditch the overlay and go with text you can use the new speech to text feature to analyze the whole thing and show only text. Or you could use the the generated text media to snap to.

Otherwise this is how I’d approach this problem, assuming that all the overlays are identical and only the position changes (very close to what you’ve already described):

9 video track setup, apply the position via track motion for each video track. So any image you drop in track A1 will be placed in position A1. This way you only reference 1 image. Setup all the positions, rename tracks, assign differing colors, minimize them in size for easier editing.

Then as I go through the footage, whenever there’s a move – I’d pause, select the right track, paste, move on. I’d keep pasting the same image. I suggest you skip adding markers.

Or if a square is always active, you could split when there is a move and shift it to the right track.