At their second assignment, the 2019 JGP Croatia, the team placed second, again behind teammates Artemeva/Nazarychev, and with 24 qualifying points advanced a spot to the 2019–20 Junior Grand Prix Final.

The pair competed once more before the Final, earning a silver medal in the junior event at the 2019 Volvo Open Cup behind Apollinariia Panfilova / Dmitry Rylov.

The team won the free skate, but were unable to fully make up the margin set by the gold medalists in the short program.

Despite qualifying, Mukhametzianova/Mironov elected to sit out of the 2020 Russian Figure Skating Championships due to fatigue from the Junior Grand Prix Final.

Mukhametzianova eventually lost the support of her coaches after her next partnership with Vladislav Antonyshev failed to produce results and her difficulty losing weight persisted, and she ultimately left the training group.