multidomain site redirections not working for 1 domain

I have a (old) multilingual site (with WPML), that has separate domains for every language:
domain.fr, domain.nl, domain.de, domain.com
redirections are being made to the new site, that only has 1 domain: domain.com with languages subfolders: domain.com/fr, domain.com/nl, domain.com/de and domain.com/en

I created redirections in the old site in the Redirection plugin, but the dutch redirections are being redirected to the french pages on the new site. I can’t see why this is working this way, certainly, since the other domains are being redirected fine.