Hi,
Well, it’s nearly impossible to tell without actually seeing the output, but I’m going to guess. I think the SVG icon element styling might be overwritten by another stylesheet to be displayed as a block. If I’m correct, then this custom CSS code should do the trick:
[code].probox svg {
display: inline-block !important;
}[/code]
This is just a wild guess though. Feel free to link a page where I can see this, and I will check what else might be causing it.