Could you specify how to reproduce the problem? We populated the form and no error in debug log and info about the subscriber is available in app log. Check it please.

Regards,
ARI Soft

If you look at the error log there are many of these:

[2023-06-25 00:55:20] cf7connector_system.ERROR: "Brochure Request Gad" [3170]: MailerLite subscription is failed: Error: Unprocessable entity {"email":"nameremoved@gmail.com","name":"Darby","lists":{"84075279331362530":{"id":"84075279331362530","fields":{"hearabout":"GA","phone":"xxxxx","dates":"xxxxxx"}}}} []

They get added to Mailerlite but they don't get added to the assigned group.

I have had to change to a different plugin because I couldn't wait any longer. I'm using a different plugin for this particular form and your plugin for another form (which doesn't produce the error).

I also tried updating CF7 plugin and your plugin and when I do that the form doesn't work at all. WordPress is updated.

Something else I've noticed. I manage a number of Mailerlite accounts/websites. Today I added new forms on 2 websites and they had the same issue - it won't add to a group. These 2 accounts use the new Mailerlite interface. I then added it to a 3rd website which uses the old Mailerlite Classic and that one added it to the group.
So it looks like it's an issue with the new version of Mailerlite.

Could you update the plugin to latest version (1.2.2) and try to reproduce the problem? v. 1.1.x doesn't work properly with new MailerLite API.

If the problem will occur with latest plugin version then provide steps how to reproduce it and we will check this.

Regards,
ARI Soft