Facebook bot analytics custom_events events keep = 0

Following the rules, I am including this as a new question, but it relates directly to these, hopefully this is what stackoverflow admins are expecting:

Facebook Analytics: User Properties and Logged Events Using the Graphics API

Facebook bot analytics event logging

I send custom_events requests to FB.Analytics, but the event-related counts are always zero, as you can see in the attached file, no matter how many times I send a request with a successful return, keep = 0 counts. I didn't know if the problem could be be related to facebookID, now I tried to enable it but the problem still persists.

'custom_events = [{"user_unique_id": 1000xxxxx682, ...

By the way, I am submitting a request from my Linux Ubuntu.

Please have you found any way to resolve this? Any idea of ​​the source of this problem? Thank you very much! Respectfully.

--------- Request:

curl -F 'event = CUSTOM_APP_EVENTS' \ -F 'advertiser_tracking_enabled = 1' \ -F 'application_tracking_enabled = 1' \ -F 'custom_events = [{"_ eventName": "fb_onboarding_OK", "n_contents_showed" ": 10," _logTime : 1499965797}] '\              https://graph.facebook.com/12XXXXXXXX27YYY36/activities

{"Success": true}