The vaccination QR codes became invalid due to a software update on the public services portal 
Shortening the validity period of the vaccination QR codes, which discovered on November 8 by some Russians, it happened due to a software update on the portal of state services. KP.RU writes about this.
There was no official document on changing the validity of old certificates. The portal of state services promised to restore the previous validity period of QR codes on vaccination within a day.
As the newspaper writes, users who encounter such a problem should send a complaint on the site. While it will be considered, a temporary certificate is issued for 14 days.
Earlier it was reported that the certificates of vaccinated users, which were previously valid for a year, from November 8 appear as valid for six months. This is stated in public services.