I want to use a .svg logo. I open the dashboard and upload it to the media library successfully in the background.
However, at the front desk, on the homepage of my website, the original woodmart logo disappeared, there was only a blank space, and nothing was visible.
To fix this problem, you need to open your SVG icons file with some editor like Sublime Text or default system text editor and add height and width attributes to your <svg> tag like it is shown on the screenshot https://gyazo.com/83fd36b0bb9628bb1aed2bd3d5d063c5
Then you will need to reupload your icons in WordPress Dashboard.