Icons do not appear in buttons in Shortcodes Ultimate v 4.4.6

I’m developing a redesign of my website from HTML to WordPress, and I first want to say that I love the flexibility of Shortcodes Ultimate, especially the ability to make buttons the same size to match column widths in a responsive design.

However, no icons appear on the buttons. See this page in progress at https://www.locatehome.com/wordpress/home-search-options/

Currently, Custom Formatting, Compatibility Mode and Skip Default Values are all enabled. I have tried unchecking both Custom Formatting and Compatibility Mode, but nothing changed.

When I create a button and choose an icon, the icon appears in the “live preview.” However, when the code is added to the page, there is no icon. I have even tried just adding one button to a page, with no other content, but no icon on the webpage… only in the “live preview.” For instance: [su_button wide=”yes” center=”yes” icon=”icon: envelope-o”]Button text[/su_button]

I have viewed the page on the following browsers on a Mac, all with the same results:
1) Apple’s Safari browser Version 7.0 (9537.71)
2) Google Chrome Version 31.0.1650.57
3) Google Chrome Version 33.0.1712.2 canary (development version)
4) Firefox Version 22.0
5) Opera Version 12.16

Here is the code which I inserted on the page https://www.locatehome.com/wordpress/home-search-options/, which I already mentioned above:

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My site give you extra options to search for homes and other real estate in the Fargo, ND – Moorhead, MN region using the Multiple Listing Service (MLS) of the Fargo-Moorhead Area Association of REALTORS?. Some options allow you to search MLS’s in Detroit Lakes, MN and Grand Forks, ND area, plus other cities and states.

[su_row]
[su_column size=”1/3″][su_button background=”#0404B4″ wide=”yes” center=”yes” icon=”icon: search”]Advanced Home Search[/su_button]

• Advanced options to search real estate on the Fargo-Moorhead Area Association of REALTORS? Multiple Listing Service (MLS).
• Map and satellite views.
• Ability to create an account to save your search preferences, sort and save favorite listings, plus share listings through Facebook, Twitter, e-mail links and other options.

[/su_column]
[su_column size=”1/3″][su_button background=”#44A925″ wide=”yes” center=”yes” icon=”icon: search”]Advanced Home Search(MOBILE version)[/su_button]

• Smartphone and tablet-friendly search format with advanced options for fine-tuning your home search preferences.
• Map and satellite views.
• Ability to create an account to save your search preferences, sort and save favorite listings, plus share listings through Facebook, Twitter, e-mail links and other options.

[/su_column]
[su_column size=”1/3″][su_button background=”#EB3232″ wide=”yes” center=”yes” icon=”icon: search”]Map SearchLocal & Nationwide[/su_button]

• Search for real estate by geographic areas in North Dakota, Minnesota or any state using a map.
• Search various Multiple Listing Services including: Fargo-Moorhead area; Detroit Lakes, MN area; Grand Forks, ND area.

[/su_column]
[/su_row]

[su_row]
[su_column size=”1/3″][su_button background=”#FF9900″ wide=”yes” center=”yes” icon=”icon: search”]Easy Home Search[/su_button]

• My classic, easy-to-use search with basic options. Nothing confusing or complicated here.
• Includes all real estate on the Fargo-Moorhead Area Association of REALTORS? Multiple Listing Service (MLS).

[/su_column]
[su_column size=”1/3″][su_button background=”#CC0099″ wide=”yes” center=”yes” icon=”icon: search”]National Home Search[/su_button]

• Search Multiple Listing Services (MLS) in many communities across the United States.
• Map and satellite views.
• Ability to create an account to save your search preferences, sort and save favorite listings, plus share listings through Facebook, Twitter, e-mail links and other options.

[/su_column]
[su_column size=”1/3″][su_button background=”#3399FF” wide=”yes” center=”yes” icon=”icon: search”]MLS Number Search[/su_button]

• Quickly find houses and other real estate when you already know the MLS listing numbers.
• Searches real estate on the Fargo-Moorhead Area Association of REALTORS? Multiple Listing Service (MLS).

[/su_column]
[/su_row]

[su_row]
[su_column size=”1/3″][/su_column]
[su_column size=”1/3″][su_button background=”#fff433″ color=”#0a0909″ wide=”yes” center=”yes” icon=”icon: envelope-o”]Get Automatic Home Updates[/su_button]

• Sign up to get your personal, customized web “portal” where you can save your own home search criteria, save information about your favorite homes in the Fargo-Moorhead region, plus get automatic home update reports e-mailed to you when new listings come on the market. It’s a great feature to make sure you don’t miss new listings!

[/su_column]
[su_column size=”1/3″][/su_column]
[/su_row]

https://www.ads-software.com/plugins/shortcodes-ultimate/