Premiere Pro CC 2017 - black rectangles after rendering

[iruscakova]

Hello everyone, I am facing the issue: After rendering a video, random black rectangles are appearing in the video. They are in the same spot, at the same time after different rendering settings. I want to get rid of them, but they are not in the preview. The video is in 60fps (some sequences are made slower, but rectangles are not appearing there), 1080p. I tried to render it in 30fps, but no change. What is that and how I can solve this problem? Thank you.

[yenaphe]

Hi,

Have you tried to clear the image cache?

[iruscakova]

UPDATE

Yes, I tried but it didn´t work. I found the issue now. Take a look:

I have green Color Matte, I want just part of it (look at the Mask (1)) and I used Wipe effect on it. the black rectangle is the rest of the green rectangle just before it appears (before the Wipe is completed). I can see darker rectangle just when I switch from browser/folder to Premiere (when I click on it in Premiere it disappears).

What should I do?

[iruscakova]

[iruscakova]

[yenaphe]

Why do you need to have your green matte bigger than what you want ? Can you try to make it the required size instead of masking it?

[iruscakova]

I have many green rectangles in this video and each one is a different size, it was better for editing, do you think this is the problem?

[Ann Bens]

If you don't need the green rectangulars remove them.

[iruscakova]

I need them. Those are backgrounds for my text. I don´t know if there is another way to do it.

[Ann Bens]

What are those green rectangulars?

Color matte, shape......?

[iruscakova]

Look at the answers above, I created a Color Matte and then created a Mask (1), because I need different sizes of those rectangles in the video.

[Ann Bens]

Try shapes from the titler.

[iruscakova]

Solved the problem, thank you. It´s a shame, I have to change every Color Matte, so much lost time.