State Dropdown not working

Hi,

I have just upgraded WooCommerce to 3.4.2 and I am finding that the State dropdown on the Checkout is now so narrow that you can only see one character in the width.
I can see that the problem is with the select2 styling but cannot work out where the issue is? Any help would be much appreciated….

### WordPress Environment ###

Home URL: http://www.orangelimewebdesign.com.au/jec
Site URL: http://www.orangelimewebdesign.com.au/jec
WC Version: 3.4.2
Log Directory Writable: ✔
WP Version: 4.9.6
WP Multisite: –
WP Memory Limit: 256 MB
WP Debug Mode: ✔
WP Cron: ✔
Language: en_AU
External object cache: –

### Server Environment ###

Server Info: LiteSpeed
PHP Version: 7.0.30 - We recommend using PHP version 7.2 or above for greater performance and security. How to update your PHP version
PHP Post Max Size: 40 MB
PHP Time Limit: 30
PHP Max Input Vars: 1000
cURL Version: 7.54.0
OpenSSL/1.0.2k

SUHOSIN Installed: –
MySQL Version: 5.6.39-cll-lve
Max Upload Size: 32 MB
Default Timezone is UTC: ✔
fsockopen/cURL: ✔
SoapClient: ✔
DOMDocument: ✔
GZip: ✔
Multibyte String: ✔
Remote Post: ✔
Remote Get: ✔

### Database ###

WC Database Version: 3.4.2
WC Database Prefix: wp_
MaxMind GeoIP Database: ✔
Total Database Size: 3.54MB
Database Data Size: 2.58MB
Database Index Size: 0.96MB
wp_woocommerce_sessions: Data: 0.02MB + Index: 0.02MB
wp_woocommerce_api_keys: Data: 0.02MB + Index: 0.03MB
wp_woocommerce_attribute_taxonomies: Data: 0.02MB + Index: 0.02MB
wp_woocommerce_downloadable_product_permissions: Data: 0.02MB + Index: 0.05MB
wp_woocommerce_order_items: Data: 0.02MB + Index: 0.02MB
wp_woocommerce_order_itemmeta: Data: 0.02MB + Index: 0.03MB
wp_woocommerce_tax_rates: Data: 0.02MB + Index: 0.06MB
wp_woocommerce_tax_rate_locations: Data: 0.02MB + Index: 0.03MB
wp_woocommerce_shipping_zones: Data: 0.02MB + Index: 0.00MB
wp_woocommerce_shipping_zone_locations: Data: 0.02MB + Index: 0.03MB
wp_woocommerce_shipping_zone_methods: Data: 0.02MB + Index: 0.00MB
wp_woocommerce_payment_tokens: Data: 0.02MB + Index: 0.02MB
wp_woocommerce_payment_tokenmeta: Data: 0.02MB + Index: 0.03MB
wp_woocommerce_log: Data: 0.02MB + Index: 0.02MB
wp_commentmeta: Data: 0.02MB + Index: 0.03MB
wp_comments: Data: 0.02MB + Index: 0.09MB
wp_links: Data: 0.02MB + Index: 0.02MB
wp_masterslider_options: Data: 0.06MB + Index: 0.02MB
wp_masterslider_sliders: Data: 0.03MB + Index: 0.03MB
wp_options: Data: 0.25MB + Index: 0.05MB
wp_postmeta: Data: 0.22MB + Index: 0.06MB
wp_posts: Data: 1.52MB + Index: 0.06MB
wp_termmeta: Data: 0.02MB + Index: 0.03MB
wp_terms: Data: 0.02MB + Index: 0.03MB
wp_term_relationships: Data: 0.02MB + Index: 0.02MB
wp_term_taxonomy: Data: 0.02MB + Index: 0.03MB
wp_usermeta: Data: 0.02MB + Index: 0.03MB
wp_users: Data: 0.02MB + Index: 0.05MB
wp_wc_download_log: Data: 0.02MB + Index: 0.03MB
wp_wc_webhooks: Data: 0.02MB + Index: 0.02MB

### Post Type Counts ###

amn_wpforms-lite: 1
attachment: 67
jetpack_migration: 2
jp_img_sitemap: 1
jp_sitemap: 1
jp_sitemap_master: 1
mc4wp-form: 1
ml-slide: 3
ml-slider: 1
nav_menu_item: 15
page: 28
post: 1
product: 8
revision: 112
wpforms: 1

### Security ###

Secure connection (HTTPS): ❌
					Your store is not using HTTPS. Learn more about HTTPS and SSL Certificates.
Hide errors from visitors: ❌Error messages should not be shown to visitors.

### Active Plugins (7) ###

Akismet Anti-Spam: by Automattic – 4.0.3
Jetpack by WordPress.com: by Automattic – 6.1
MailChimp for WordPress: by ibericode – 4.2.1
Master Slider Pro: by averta – 3.2.2
UpdraftPlus - Backup/Restore: by UpdraftPlus.Com
DavidAnderson – 1.14.7

WooCommerce: by Automattic – 3.4.2
WPForms Lite: by WPForms – 1.4.5.3

### Settings ###

API Enabled: ✔
Force SSL: –
Currency: AUD ($)
Currency Position: left
Thousand Separator: ,
Decimal Separator: .
Number of Decimals: 2
Taxonomies: Product Types: external (external)
grouped (grouped)
simple (simple)
variable (variable)

Taxonomies: Product Visibility: exclude-from-catalog (exclude-from-catalog)
exclude-from-search (exclude-from-search)
featured (featured)
outofstock (outofstock)
rated-1 (rated-1)
rated-2 (rated-2)
rated-3 (rated-3)
rated-4 (rated-4)
rated-5 (rated-5)

### WC Pages ###

Shop base: #182 - /shop/
Cart: #183 - /cart/
Checkout: #184 - /checkout/
My account: #185 - /my-account/
Terms and conditions: #149 - /shipping-and-returns/

### Theme ###

Name: graphy Child
Version: 1.0.0
Author URL: http://orangelimewebdesign.com.au
Child Theme: ✔
Parent Theme Name: Graphy
Parent Theme Version: 2.2.1 – 2.2.2 is available
Parent Theme Author URL: http://themegraphy.com/
WooCommerce Support: ❌ Not declared

### Templates ###

Overrides: graphy-child/woocommerce/checkout/form-billing.php
graphy-child/woocommerce/checkout/form-checkout.php

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