Resolved
Reported for: WooCommerce Multilingual & Multicurrency 5.2.1
Resolved in: WooCommerce Multilingual 5.3.0
Overview of the issue
With the latest release of WooCommerce Product Add-ons (6.5.0), it’s not possible anymore to set or edit prices in secondary currencies for multiple choices or checkboxes.
Workaround
We are close to releasing WooCommerce Multilingual 5.3.0 that will resolve the issue.
Until then, please keep version 6.4.7 of WooCommerce Product Add-ons (or lower) to avoid the issue.