When creating a connector, it is possible to export only one or more of the languages available in the account. For this, go to parameters and use the option Languages to connect:
You have the possibility to localize the names of the fields according to their different languages. In this way, translations of titles can be different not only from those existing in the forms but also in each of the connectors.
By default, connectors will inherit translations of field names from the form. But if you translate the titles after creating the connector, they will not be reflected in it and the field will be empty.
Remember that this functionality is only available in connectors where you can choose the option Export multi-language titles in Parameters.