Import csv via api

Hello,

I’m in the same situation than the last message of @benjaminl in this topic (I first posted my question after his last message, same csv file architecture)

The import created by API failed with this message :

And when I try to upload again the file manually, I have this error (same as @benjaminl and no BOM in the file) :

But when I create a manual import using interface, and try to upload the same file, it succeeds.

Finally, I encounter this problem only in the production workspace. The same API upload run well in staging workspace.

Do you have an idea of the origin of this error ? Is it related to a workspace setting or parameter ?