Hi,

We've fixed it in the latest version of Soledad theme - 7.3.5.

Let's go and update the theme to version 7.3.5 by do following this guide.

After update the theme to latest version, don't forget updates plugins via Appearance > Install Plugins > click on "Update" tab.

When you done, edit a post and the issue will gone. If you didn't see the issue gone, please Press Ctrl + F5 sometimes to clear all the cache - and it should works now.

Best Regards,

PenciDesign