Blank Cover Image when uploaded

[EnDylan]

Hi, I have a problem with cover images. When I upload them, it is blank (aka transparent) it shows only the site's background.

Is there a workaround for this?
I am hosting it using a Windows 10, Redstone 1 computer to host. Could this be caused by cloudflare?

My site is at: https://community.hexamc.net/
Reverse Proxy is Nginx
Image Processor: Imagick

Please reply as soon as possible! Thanks

[PitaJ]

This may be an issue that has since been fixed. Try pulling the latest master.

[EnDylan]

I already did. I just fetched the latest build.