Problem with multilingual and dataset

Hello,
I have a strange thing going on with a page who has 2 datasets, a repeater, a list and is multilingual.
Everything is working great on my dutch page (in sandbox, not published) example. All is displayed as it should be and working fine. But when going to the french (using the multilingual app) part of the page during example stage, no data is shown there, nor in the English part of the site.
Going back to the dutch multilingual part (example stage), the data is shown…
Going back to sandbox, the filter to my reference dataset in the dutch multilingual sandbox gives no problems, but in the french and English part of the multilingual sandbox I get the error message “same current value from unknown (unknown)”.
Really strange…
PS I have already made everything from scratch on the page for the second time as I had problems the first time with the list after getting the message “Cannot read property ‘compId’ of undefined” see the following post: https://www.wix.com/code/home/forum/community-discussion/typeerror-cannot-read-property-compid-of-undefined
Is there anyone who has an idea of why this is going on?
Thanks for your help.

Mmmm solved by redoing the datasets again for the 3rd time…