SMARCC2 and Coffin-Siris syndrome: Recently, heterozygous variants in the SWI/SNF‐related, matrix‐associated, actin‐dependent regulator of chromatin subfamily c member 2 (SMARCC2) gene were described as underlying Coffin‐Siris syndrome 8 (CCS‐8; MIM: 618362), characterized by ID and multiple malformations (Machol et al. 2019).