As he wrote on his Twitter page, the launch was postponed for a day - to November 30.

“The GKTs (Guiana Space Center) made a decision to continue the preparation and launch of the ILV on November 30, 2020 at 04:33 Moscow time,” Rogozin said.

The GCC made a decision to continue the preparation and launch of the ILV on November 30, 2020 at 4.33 Moscow time.

https://t.co/AuTWTPEHzM

- ROGOZIN (@Rogozin) November 28, 2020

Earlier, a defective part was found in the Soyuz rocket at the Kuru cosmodrome.