Transparent background images aren't syncing

What I’m trying to do

I’m using my desktop as a workstation for note taking but plan on using my ipad for actually using my notes I make. When I look through them on my ipad and iphone some images aren’t syncing up. The images are pretty specific too. They are only images with a transparent background and it’s only some of them.

Things I have tried

I’ve used similar images without transparent background and they were able to sync up no problem. So I’m unsure why only certain images aren’t syncing properly?

What service/method are you using to sync the vault between the devices?

Obsidian sync.

What Sync plan are you using? Standard or Plus?

https://help.obsidian.md/sync/plans

If you are using the Standard plan and the images are >5MB, they won’t sync. That could be a possibility.