** UPDATE 07/04/2021 23:30 EEST **
According to Facebook's bug report this issue should be solved: https://developers.facebook.com/support/bugs/250425789804587/
Thank you for your patience and apologies for the inconvenience caused by this.
** UPDATE 23/03/2021 9:40 EET **
According to Facebook there's no further update on this bug https://developers.facebook.com/support/bugs/250425789804587/ meaning that small amount of queries might still fail. We'll continue monitoring on the bug report on Facebook's end.
** UPDATE 10/02/2021 10:00 EET **
Thank you for your patience.
According to our investigations the issue seems to have been resolved for majority of the customers. If you still see this issue with your queries, please contact support.supermetrics.com.
Please note that for a small amount of queries there is still an issue that is being investigated at Facebook's end: https://developers.facebook.com/support/bugs/250425789804587/
** UDPATE 03/02/2021 16:00 EET **
We are unfortunately still seeing a small number of queries failing with this error and will continue investigating those queries. Other parties have reported similar issues on Facebook's bug reports: https://developers.facebook.com/support/bugs/250425789804587/ and https://developers.facebook.com/support/bugs/1117654008661827/
We'll update this article when we have more news to share. Our apologies for the continued inconvenience.
** UPDATE 01/02/2021 11:00 EET **
We have deployed a fix that should reduce the chance of running into this error. We are still seeing a small number of queries failing with this error and will continue investigating those queries. We'll update this article when we have more news to share.
* Next update latest on 03/02/2021 16:00 EET *
** UPDATE 29/01/2021 15:00 EET **
Unfortunately we have no further news to share yet, our development team is still investigating the cause for this error.
* Next update latest on 01/02/2021 16:00 EET *
We have discovered an issue with some Facebook Insights queries, which is causing them to fail with error: "FB post fetching error: An unknown error has occurred.".
We are investigating the cause for this, and will update this article as soon as we have more information to share.
Thank you for your patience. Our sincerest apologies for any inconvenience caused by this.