Apha RGB lower thirds Glitching in Avid

[helpme21]

Hello Everyone,

I am having some issues with importing Alpha RGB titles in Avid Media Composer. I am importing these Alpha RGB transparent text and lower thirds into Avid than I am cutting them into the timeline and they are glitching the footage when I lay the text over the footage. I must be doing something wrong that is causing this issue. I know it's not a hardware issue. I am running windows by the way. I  am editing in avid 1920X 1080 29.97. When I remove the Alpha text I don't get glitchy jumps in my video. ThankYou for your help.

These are my settings for Alpha RGB from AE

RGB+Alpha Quicktime

Color: Premultiplied Matted

Format Options Animation

Importing into Avid

Alpha Channel-Invert on import White=Opaque

Image Size Adjustment-Image Sized for Current Format

Color levels

Scale from Full Range to legal range

Autodetect sequentially numbered files

I have brought these in MXF 45 and 100 still same problem.

[helpme21]

Bump any Avid user's with this issue?

[Roei Tzoref]

Render again but this time In the output module settings change the color to "straight" instead of "premultiplied".

[Dave_LaRonde · Accepted solution]

Do this:  Go to the end of the timeline. set an out point.   Go to the head of the Avid timeline.  Set an in point.  Right-click on the top of the timeline.  Select Expert Render In To Out.  Render it.

And learn to use Avid.

[helpme21]

That is what I have been doing is rendering the matte RGB Alpha in the timeline in avid and setting in and out. The problem has gone away.