Using Template Filters in Order Emails

I have a template filter set up in perch, which works perfectly fine on the website. However when I go to apply that filter to a tag in the Order Email that Perch sends after payment is received, the template filter is not applied. I don't know how to view the debugger for an email ... so unfortunately I don't have one to send you. Only the basic information from Perch.

I can see below that I have 1 template filter registered which is correct.

Perch: 3.0.10
Production mode: Production (100)
Installed apps: content (3.0.10), assets (3.0.10), categories (3.0.10), perch_forms (1.9.1), perch_shop_orders (1.2.5), perch_shop_products (1.2.5), perch_shop (1.2.5), perch_members (1.6.2)
DB driver: PDO
DB tables: custom_wishlist (0), perch3_categories (4), perch3_category_counts (0), perch3_category_sets (1), perch3_content_index (108), perch3_content_items (34), perch3_content_regions (7), perch3_forms (1), perch3_forms_responses (0), perch3_members (1), perch3_members_forms (1), perch3_members_member_tags (0), perch3_members_sessions (1), perch3_members_tags (0), perch3_menu_items (13), perch3_navigation (0), perch3_navigation_pages (0), perch3_page_templates (1), perch3_pages (7), perch3_resource_log (1783), perch3_resource_tags (0), perch3_resources (1494), perch3_resources_to_tags (0), perch3_settings (31), perch3_shop_addresses (9), perch3_shop_admin_index (192), perch3_shop_brands (1), perch3_shop_cart (101), perch3_shop_cart_data (27), perch3_shop_cart_items (5), perch3_shop_countries (53), perch3_shop_currencies (152), perch3_shop_customers (1), perch3_shop_emails (2), perch3_shop_index (13092), perch3_shop_option_values (107), perch3_shop_options (1), perch3_shop_order_items (6), perch3_shop_order_promotions (0), perch3_shop_order_statuses (9), perch3_shop_orders (3), perch3_shop_orders_meta (1), perch3_shop_product_files (0), perch3_shop_product_option_values (122), perch3_shop_product_options (86), perch3_shop_product_tags (0), perch3_shop_products (225), perch3_shop_promotions (1), perch3_shop_sales (0), perch3_shop_search (203), perch3_shop_shipping_zone_countries (52), perch3_shop_shipping_zones (5), perch3_shop_shippings (6), perch3_shop_tax_exhibits (239), perch3_shop_tax_group_rates (56), perch3_shop_tax_groups (2), perch3_shop_tax_locations (28), perch3_shop_tax_rates (77), perch3_shop_variants (136), perch3_user_passwords (0), perch3_user_privileges (72), perch3_user_role_privileges (2), perch3_user_roles (2), perch3_users (2)
Users: 2
App runtimes:
<?php
    $apps_list = [
        'content',
        'categories',
        'perch_members',
        'perch_shop',
        'perch_forms',
    ];
Editor plug-ins:
H1: 8f4d668e1c91ebaf59bc1287cd7dc318
L1: 97d1f766ac7b08a09f98dff79590a26b
F1: 3b606135b33e6a102526838f4152a807
headerColour: #04ffb6
content_singlePageEdit: 1
helpURL:
siteURL: /
hideBranding: 1
content_collapseList: 1
lang: en-gb
installedAt: 3.0.8
update_3.0.8: done
latest_version:
on_sale_version: 3.0.10
perch_shop_update: 1.2.5
headerScheme: light
perch_members_login_page: /accounts/login.php
perch_shop_price_tax_mode: exc
perch_shop_product_url: /product/{slug}
perch_shop_default_currency: 59
perch_shop_reporting_currency: 59
dashboard: 1
hide_pwd_reset: 0
keyboardShortcuts: 0
content_hideNonEditableRegions: 0
content_frontend_edit: 0
content_skip_region_list: 1
logoPath: /perch/resources/logo-2.png
perch_members_update: 1.4
update_3.0.9: done
assets_restrict_buckets: 0
perch_shop_site_url: https://www.becalistyle.com
update_3.0.10: done
perch_shop_invoice_number_format: Invoice-%d
PERCH_DEVELOPMENT: 10
PERCH_STAGING: 50
PERCH_PRODUCTION: 100
PERCH_DB_SERVER: localhost
PERCH_DB_USERNAME: stuntdawg
PERCH_DB_DATABASE: becalistyle
PERCH_DB_PREFIX: perch3_
PERCH_TZ: Europe/Budapest
PERCH_EMAIL_FROM: info@becalistyle.com
PERCH_EMAIL_FROM_NAME: BeCalifornia KFT.
PERCH_LOGINPATH: /perch
PERCH_PATH: /Users/bmyers/Sites/becalistyle/perch
PERCH_CORE: /Users/bmyers/Sites/becalistyle/perch/core
PERCH_RESFILEPATH: /Users/bmyers/Sites/becalistyle/perch/resources
PERCH_RESPATH: /perch/resources
PERCH_HTML5: 1
PERCH_DEBUG: 1
PERCH_EMAIL_METHOD: smtp
PERCH_EMAIL_HOST: smtp.postmarkapp.com
PERCH_EMAIL_AUTH: 1
PERCH_EMAIL_PORT: 587
PERCH_EMAIL_USERNAME: xxxxxxxxxxxxxxxxxxxxx
PERCH_TEMPLATE_FILTERS: 1
PERCH_RUNWAY:
PERCH_ERROR_MODE: DIE
PERCH_DATE_LONG: %d %B %Y
PERCH_DATE_SHORT: %d %b %Y
PERCH_TIME_SHORT: %H:%M
PERCH_TIME_LONG: %H:%M:%S
PERCH_RUNWAY_ROUTED:
PERCH_STRONG_PASSWORDS:
PERCH_ASSET_VERSION: 23f8a1427c17ade109a3
PERCH_PREVIEW_ARG: preview
PERCH_TEMPLATE_PATH: /Users/bmyers/Sites/becalistyle/perch/templates
PERCH_DEFAULT_DOC: index.php
PERCH_DEFAULT_EXT: .php
PERCH_PRODUCTION_MODE: 100
PERCH_XHTML_MARKUP:
PERCH_RWD: 1
PERCH_HTML_ENTITIES:
PERCH_SSL:
PERCH_STRIPSLASHES:
PERCH_PROGRESSIVE_FLUSH: 1
PERCH_PARANOID:
PERCH_FORCE_SECURE_COOKIES:
PERCH_DEFAULT_BUCKET: default
PERCH_TRANSLATION_ASSIST:
PERCH_PASSWORD_MIN_LENGTH: 6
PERCH_MAX_FAILED_LOGINS: 10
PERCH_AUTH_LOCKOUT_DURATION: 1 HOUR
PERCH_VERIFY_UPLOADS:
PERCH_PRIV_ASSIST:
PERCH_CUSTOM_EDITOR_CONFIGS:
PERCH_ENABLE_EXIF: 1
PERCH_AUTH_PLUGIN:
PERCH_DB_CHARSET: utf8
PERCH_DB_PORT:
PERCH_DB_SOCKET:
PERCH_SHOP_VERSION: 1.2.5
PERCH_APPS_EDITOR_PLUGIN: markitup
PERCH_APPS_EDITOR_MARKUP_LANGUAGE: markdown
Hosting settings

PHP: 7.1.8
Zend: 3.1.0
OS: Darwin
SAPI: apache2handler
Safe mode: not detected
MySQL client: mysqlnd 5.0.12-dev - 20150407 - $Id: b396954eeb2d1d9ed7902b8bae237b287f21ad9e $
MySQL server: 5.6.31
Free disk space: 767.92 GB
Extensions: Core, date, libxml, openssl, pcre, sqlite3, zlib, bcmath, bz2, calendar, ctype, curl, dba, dom, hash, fileinfo, filter, ftp, gd, gettext, SPL, iconv, json, ldap, mbstring, session, standard, odbc, mysqlnd, PDO, pdo_mysql, PDO_ODBC, pdo_sqlite, Phar, posix, Reflection, mysqli, shmop, SimpleXML, soap, sockets, exif, sysvmsg, sysvsem, sysvshm, tokenizer, wddx, xml, xmlreader, xmlrpc, xmlwriter, xsl, zip, apache2handler, geoip, imagick, mcrypt
GD: Yes
ImageMagick: Yes
PHP max upload size: 128M
PHP max form post size: 128M
PHP memory limit: 128M
Total max uploadable file size: 128M
Resource folder writeable: Yes
Session timeout: 24 minutes
Native JSON: Yes
Filter functions: Yes
Transliteration functions: No
HTTP_HOST: becalistyle.local
HTTP_ACCEPT_ENCODING: br, gzip, deflate
HTTP_COOKIE: PHPSESSID=2g8071m7moilnmoo5g136390bf; cmsa=1; p_m=b5d6ef103f9f38d83253830a1c775843f32b0277
HTTP_ACCEPT: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
HTTP_USER_AGENT: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13) AppleWebKit/604.1.38 (KHTML, like Gecko) Version/11.0 Safari/604.1.38
HTTP_ACCEPT_LANGUAGE: en-us
HTTP_REFERER: https://becalistyle.local/perch/core/settings/diagnostics/
HTTP_DNT: 1
HTTP_X_FORWARDED_PROTO: https
HTTP_X_FORWARDED_PORT: 443
HTTP_X_FORWARDED_FOR: 127.0.0.1
HTTP_X_FORWARDED_HOST: becalistyle.local
HTTP_X_FORWARDED_SERVER: becalistyle.local
HTTP_CONNECTION: Keep-Alive
PATH: /usr/bin:/bin:/usr/sbin:/sbin
SERVER_SIGNATURE: <address>Apache Server at becalistyle.local Port 443</address>
SERVER_SOFTWARE: Apache
SERVER_NAME: becalistyle.local
SERVER_ADDR: 127.0.0.1
SERVER_PORT: 443
REMOTE_ADDR: 127.0.0.1
DOCUMENT_ROOT: /Users/bmyers/Sites/becalistyle
REQUEST_SCHEME: https
CONTEXT_DOCUMENT_ROOT: /Users/bmyers/Sites/becalistyle
SERVER_ADMIN: admin@example.com
SCRIPT_FILENAME: /Users/bmyers/Sites/becalistyle/perch/core/settings/diagnostics/index.php
REMOTE_PORT: 58981
GATEWAY_INTERFACE: CGI/1.1
SERVER_PROTOCOL: HTTP/1.1
REQUEST_METHOD: GET
QUERY_STRING: extended
REQUEST_URI: /perch/core/settings/diagnostics/?extended
SCRIPT_NAME: /perch/core/settings/diagnostics/index.php
PHP_SELF: /perch/core/settings/diagnostics/index.php
REQUEST_TIME_FLOAT: 1508256742.176
REQUEST_TIME: 1508256742