as described in the topic, I have troubles with the glyphicons. Because of security issues I decided to change my wp-content dir. I defined the new dir in wp-config.php. Everything is working fine. Except the Glyphicons in Sparkling.
I hope you are well today and thank you for your question.
Could you please share me the screenshot of what you have set in your site Reading Settings in the options “WordPress Address (URL)” and “Site Address (URL)”?