WP version compatibility, Icons not rendering when nested in another Shortcode

Good morning,

The page I linked contained the issues I am reporting this morning, but I modified it already to work around the issue.

I’m running WordPress version 7.0.2. Since Better Font Awesome is only compatible up to 6.7.5, I understand that this version incompatibility may be part of the issue. Hoping for a Better Font Awesome update soon!

I use the Heroic KB plugins and along with the KnowAll theme. The site makes heavy use of the HeroTheme messages, and I would like to nest FA icons inside those message blocks. Below is what the shortcode(s) would look like. I find that the Better Font Awesome shortcode is not rendered and the code is shown on the page within the message box instead of the icon.

[ht_message mstyle="info" title="Already using Outlook?" show_icon="true" id="" class="" style="" ]If you have Outlook already set up with another account, expand the Outlook menu in the upper-left corner of the screen, click Settings..., and then Accounts. Click the plus symbol ([icon name="plus" style="solid" class="" unprefixed_class=""]) in the bottom-left corner of the Accounts window, click Add an Account..., and skip to step 6.[/ht_message]

Here is more info about my environment:

OS:     Linux 5.14.0-687.33.1.el9_8.x86_64 #1 SMP PREEMPT_DYNAMIC Wed Jul 29 03:33:17 EDT 2026 x86_64
Shell:  /bin/bash
PHP binary:     /opt/remi/php83/root/usr/bin/php
PHP version:    8.3.33
php.ini used:   /etc/opt/remi/php83/php.ini
MySQL binary:   /usr/bin/mysql
MySQL version:  mysql  Ver 8.0.46-37 for Linux on x86_64 (Percona Server (GPL), Release 37, Revision 39e2b60e)

php wp-cli.phar core version
7.0.2

+-----------------------------------------+----------+---------+
| name                                    | status   | version |
+-----------------------------------------+----------+---------+
| add-from-server                         | inactive | 3.4.5   |
| better-font-awesome                     | active   | 2.0.4   |
| better-search-replace                   | inactive | 1.4.10  |
| classic-editor                          | active   | 1.7.0   |
| contact-form-7                          | active   | 6.1.6   |
| copy-the-code                           | active   | 5.5.2   |
| copy-to-clipboard-mobile-web            | active   | 2.3     |
| contact-form-7-dynamic-select-extension | active   | 2.0.3   |
| export-all-urls                         | inactive | 6.0     |
| fix-request-uri                         | active   | 0.2     |
| olympus-google-fonts                    | active   | 4.1.3   |
| google-analytics-for-wordpress          | active   | 11.1.2  |
| google-language-translator              | active   | 6.0.20  |
| health-check                            | inactive | 1.7.1   |
| heroic-blocks                           | active   | 1.2.4   |
| heroic-glossary                         | active   | 2.0.1   |
| ht-knowledge-base                       | active   | 4.5.2   |
| ht-kb-analytics-pro                     | inactive | 1.0.0   |
| ht-shortcodes                           | active   | 1.1.5   |
| heroic-table-of-contents                | active   | 1.2.7   |
| list-category-posts                     | active   | 0.96.0  |
| query-monitor                           | active   | 4.0.7   |
| relevanssi-premium                      | active   | 2.26.1  |
| relevanssi-premium-snowball-stemmer     | active   | 1.0     |
| responsive-lightbox-lite                | active   | 1.3.5   |
| shortcodes-ultimate                     | inactive | 7.8.4   |
| silence-admin-email-confirmation        | active   |         |
| tt-autofocus-search                     | active   | 0.1     |
| tt-problem-finder                       | active   | 0.1     |
| user-role-editor                        | active   | 4.65    |
| wordpress-importer                      | active   | 0.9.5   |
| wp-cassify                              | active   | 2.4.9   |
| wp-dark-mode                            | inactive | 5.3.10  |
| wp-featherlight                         | inactive | 1.3.4   |
| wp-super-cache                          | inactive | 3.1.1   |
| health-check-troubleshooting-mode       | must-use | 1.7.2   |
| advanced-cache.php                      | dropin   |         |
| db.php                                  | dropin   |         |
+-----------------------------------------+----------+---------+

The page I need help with: [log in to see the link]