Hello,
As your icons not visible and displayed incorrectly, you need to open your SVG icons file with some editor like Sublime Text or default system text editor and add width=”31″ height=”40″ attributes to your <svg> tag like it is shown: http://prntscr.com/l897ta
Then you will need to re-upload your icons in WordPress Dashboard.
I also notice that your first two infobox svg images displayed incorrectly because they are missing viewBox tag. You can check the video for clarification:
https://gyazo.com/d265949b072bf2051b74f36cec86032a
You can also try your icons in .jpg or .png format because most of the times the issue is SVG file code, due to extra small or extra large height and width SVG icons not shown.
Best Regards.
.
