Hi,

Embedded SVG styles applied to each individual image cant be removed by WordPress theme. If your SVG styles classes use the equal name they will interfere with each other. You can open your SVG image in any text editor and manually change styles to inline like is shown on this screenshot https://prnt.sc/loz0mw.

If you create SVG in Adobe Illustrator we would suggest to export SVG with appropriate CSS properties in the first place. During export from Illustrator choose :style attributes. You can read more about resolving this issue in Illustrator here https://cobwwweb.com/inline-style-attributes-svg-elements.

Below I add an example file of the correct use of SVG styles.

Regards