Edge
Safari
Firefox
DuckDuckGoA drop shadow with no offset, no spread and no blur sits exactly behind the element and is completely hidden by it. Offset X and Offset Y are what move it into view.
If one or more of these match what you are seeing, you are on the right page.
Ordered from most to least likely. Work down the list — each cause is paired with what to do about it.
Set Offset X and Offset Y to move the shadow out from behind the element, or raise Spread to make it larger than the element before the blur is applied.
Raise the shadow opacity. Shadow color is independent of opacity — the color does not have to be black, but a fully transparent shadow of any color renders nothing.
Shadows render behind the element they belong to, so a lower layer can cover them. Raise the element in the stack with Ctrl+] or reorder in the Layer Panel.
Inner shadow casts inside the shape boundary for a pressed-in look. Add a drop shadow if you want the shadow behind the element.
Element opacity composites the fills, stroke and shadow as one unit. At low element opacity the shadow fades with everything else.
If none of the causes above match, contact support with the steps to reproduce the problem, your browser and version, and any message from the browser console. You can reach us at support@flashfx.app.
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