Alpha background is black when using os sharing vs in app sharing

[toger5]

Steps to reproduce

Create an image with transparent background

1. Where are you starting? What can you see?
   A: sending the image from the os image library using (share via) and selecting EX
   B: sending image from ex using the send attachment button and selecting the same image
2. What do you click?
   A: Look at the image in the timeline and see a black background
   B: Look at the image in the timeline and see a transparent background
3. More steps…

Outcome

What did you expect?

What happened instead?

Your phone model

No response

Operating system version

No response

Application version and app store

No response

Homeserver

No response

Will you send logs?

Yes

Are you willing to provide a PR?

Yes