CATDOLL:TV animation "The Idolmaster: Cinderella Girls" will be broadcast in two seasons

The official has not given an exact number of episodes for the TV animation "The Idolmaster: Cinderella Girls" which started airing in January, but some netizens have previously inferred that this work will have 26 episodes, which is a half-year series. Now it seems that this inference is true. Recently, "The Idolmaster: Cinderella Girls" was confirmed to be broadcast in two seasons, and the second season will start in July. In April, the rerun of the TV animation "The Idolmaster" will take over the broadcast time of "The Idolmaster: Cinderella Girls". Why is it arranged like this? Is there something wrong with the production side?