Accordion toggle icons not displaying

The shortcode works pretty well, but I can not get any icon to display in the main bar. Here’s the shortcode:

[su_accordion class=””]
[su_spoiler title=”2019″ open=”no” style=”simple” icon=”chevron-circle” anchor=”” anchor_in_url=”no” class=””]
[/su_spoiler]
[/su_accordion class=””]

Is there something I am missing? Do I need to specify a class for the whole accordion?

Please advise a fix.

Thanks!!

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