Hi Artystyc,
‘URL slugs’ – registered automaticaly in WCML.
Also when you set “default” WC permalinks then WC uses “product” slug and WCML get translations for “product” from WC .mo files. If you want change translation for this slug in other languages you can do this in “String translation” (URL slugs – product) or in Translation management->Multilingual Content Setup->Custom posts.
So please update to 3.1 version then save permalinks and edit translations for “product” slug if needed. If you will have 404 error on the product page then please let me know and I’ll look on your configuration.
Hi Artystyc,
what is your main language and which language you have set to strings?
do you try set WC permalinks to default and update?