Duplicate error messages

Hi,

I’m experiencing duplicate error messages when the entered VAT-number is nog long enough.

To reproduce:
WP 5.9.3
EU VAT Compliance 1.26.5
WooCommerce 6.4.1

Go to checkout, fill in an incomplete VAT-number, wait a few miliseconds and the standard error-message-box from WC appears telling me the VAT-number is nog long enough (obviously). This is still as expected.
What’s unexpected is that when the VAT-number is changed but still not long enough, the message is duplicated, resulting in 2 equal messages.

The underlying XHR response is in the line of:
{"result":"failure","messages":"<ul class=\"woocommerce-error\" role=\"alert\">\n\t\t\t<li>\n\t\t\tThe VAT number entered is not long enough to be valid for the chosen country.\t\t<\/li>\n\t\t\t<li>\n\t\t\tThe VAT number entered is not long enough to be valid for the chosen country.\t\t<\/li>\n\t<\/ul>\n"}

You see, the error message appears multiple times.

Could you please look into this? Thanks!