Sandboxie and Discord Drag and drop not working also copy photo

Hello i have little problem with discord.

I have some images which i wanna send to mate.
and when i drag n drop to browser(sandboxed) for example from my folder to imgur site - all work fine
but when i wanna dran n drop photo to Discord(sandbox) channel nothing happen.

 

Well use lates version of discord and Sandboxie clasic lates also.

 

did it work with any older version of sbie?

 

I cleaned my system some time ago i remember i had to do tweaks in advanced settings in past to make it work but dont remember solution and old sandboxie forum is gone with mine posts..

 

@Quassar said that Discord is sandboxed. Maybe the file explorer is un-sandboxed?
I know that when I drag and drop from my file explorer (un-sandboxed) to an un-sandboxed browser, it works fine, but when I try to drop it into a sandboxed browser it doesn't work.
So maybe try checking that the file explorer/place you're dragging from is the same as your Discord instance