Prosper comes to mind: https://www.mayerbrown.com/en/perspectives-events/publications/2019/04/model-risk-strikes-again-sec-imposes-3-million-fine-due-to-error-i

Prosper comes to mind: https://www.mayerbrown.com/en/perspectives-events/publications/2019/04/model-risk-strikes-again-sec-imposes-3-million-fine-due-to-error-in-computer-model https://www.mayerbrown.com/en/perspectives-events/publicatio... They didn't fall apart but got fined.