The plugin never shows the icons in the excerpt which means probably your theme is running “the_content” filter on the excerpt. Unless you have excerpts set to Full Content in your settings.
Hello,
We are using the Exhibit Theme and have the opposite issue. We would like to have the social media share buttons on the excerpts. Is that possible w/ Social Media Feather? Thx
tried the plug-in for a client, once installed the post summary page/excerpts stop displaying all text. Deactivated plug-in and things went back to normal.
What theme does your client use? Looks like potentially a theme issue.