Skip to main content
New Participant
February 25, 2020
Question

Alpha Channel changed to Black when Importing Video File

  • February 25, 2020
  • 9 replies
  • 9151 views

Hello,

 

I've tried this several different times, and I'm not sure what the issue is. I have an animation I made in Animate CC, which I exported as a .MOV file with transparent background. (I know that the file is working properly because I am able to use it with a transparent background in another program - OBS.)

 

When I import the .MOV file to After Effects CC, it changes the Alpha channel to solid black.

 

I have found countless articles about how to EXPORT a video with a transparent background, but none about how to IMPORT one. Hopeing someone here can help me.

Please & Thank You,

M

9 replies

New Participant
March 18, 2025

 

Is it because your alpha is ignored? RIght click on the .MOV file, look for Interpret Footage > Main. On Alpha section,  change the setting to "Straight" or "Premultiplied", instead of "Ignore".  It works on me. 

I hope it works for anyone that encounter this problem.

 

New Participant
March 18, 2025

Oh yeah, if it doesn't work, right click and pick Reload Footage. It should work.

New Participant
April 11, 2025

This solution has worked for me, thank you!!

New Participant
August 26, 2024

Столкнулся с тем же самым, сделал экспорт RGB + alpha channel через Adobe Media Encoder и черный бэкграунд пропал

Todd_Morgan
Legend
July 5, 2024

Why not just import the fla file into AE?

 

New Participant
July 5, 2024

I've been having the same problem since the last update. I've only found one primitive but working solution. import the animation/video into Photoshop, make sure the background is transparent, and then export it with alpha channel from Photoshop.

vladans28715412
New Participant
January 10, 2024

I somehow fixed with re-loading in project window... Stupid but worked for me...

New Participant
August 24, 2023

As someone who face the same problem in 2023, and did not fix. Adobe team, did not have improvement for this issue. Weird! 

New Participant
June 13, 2023

Have the same problem, bul solved it
Try to save in Premiere
1. Quicktime
2. Videocodec: animation

3. Visualisation depth 8bit+alpa channel

 

New Participant
September 23, 2022

hello 

i have same problem and i change the format from MOV to MP4 than i add the new videw  and i copy the mask

 

this is the only way i fund to solf this problem 

 

please adobe team fix this problem

OussK
Community Expert
February 25, 2020

there are no special settings to import video file with alpha channel so if your file includes alpha channel they must come automatically with transparent background, so how did you know it's come with black background did you place any elements underneath your video and you still get a black background? 

HuelickAuthor
New Participant
February 26, 2020

I think I know what you're asking. I'm going to answer in three parts:
- I know the background is transparent in the .MOV file because I can use the file in a livestream software and the background is transparent
- when I import the file into AE and put it over a white solid, I cannot see the solid. Where the alpha channel should be, it instead displays black in the viewport
- when I export it is the same

I have been having this issue since about 2 updates ago.

Community Expert
February 26, 2020

Your problem has nothing to do with the updates and everything to do with the render settings. What are they? Screenshots???