CVS files not correctly displayed in Numbers

I Have csv files from a bank, till 8 nov. 2017 they were displayed correctly in numbers.

Files downloaded after nov. 9th are not formatted the right way, it seems numbers doesn't recognize the ";" as a separater. Same problem on MacBook Pro and Imac

I can't see a difference between these files ( with Hex viewer ).

In Excel they open normal.

Numbers : ver. 4.3.1 (5249)

OS : 10.13.1