Comment by marc_abonce

For some cathedrals that visible mismatch in the materials might be a feature, not a bug.

At least that's the case for the co-cathedral in Zamora, Michoacán which had its construction interrupted for almost a century due to the Mexican Revolution, the Cristero War and its subsequent expropriation by the government. In this context, the mismatching facade remains as a testament of the building's history.

https://en.wikipedia.org/wiki/Diocesan_Sanctuary_of_Our_Lady...