So we have a very large flow used to track training, essentially you submit a document showing your completion of training and changing the status of the class to submitted and then it gets approved by the approver and changes the status to complete. it's obviously more complex than that but we've changed nothing and nobody else has changed anything on the flow, list, or power app.
The flow works for some sections within the flow but skips over validation for others. I understand I'll need to give more information so please ask any questions and i'll answer them.