Wrong pin format on timestamp data upload

Upload a Set of Timestamped Data - Blynk Documentation

For some reason this method stopped to work recently to upload historical data. Error returned is:

{
“error”: {
“message”: “Wrong pin format.”
}
}

It is even returned when putting example from documentation into address bar (with own API),.

Hello @Bartman. Not reproduced. Please provide more details.

Regards