NOT SAVE A NEW IMPORT CONFIGURATION

[Toshi_akea]

Hi, first of all, I don't know if I must put this problem here. Sorry in advance.

I have a problem with new Prestashop 1.7.7.1 that I haven't with previous releases, so IDK if this is a new bug in the new version, or only a error that happens to me.

Before I could create a new Import Products Configuration with no problem. I chose a new name and Save it.

With this new version, I can't save a new configuration. Instead, appears a new custom called "Undefined", and if I load this configuration, all columns are in blank.

Please see the captures.

Somebody else with the same problem in the last release??

Thanks a lot for your time ^^