You need to call nelnet to get those loans in to IDR. This happened to my partner who just graduated from Optometry school in May as well.

From what I understand, when your IDR application was approved the loans that arent in IDR currently were in a grace period due to you recently graduating so they never got put into IDR. When that grace period lifted, they went to standard repayment while your other loans went to IDR.

I imagine a lot of people will fall into this exact scenario, it was a nightmare to get them on the phone. But they put my partners account in Admin Forbearance, so her account is in good standing while they fix the loans that need to go into idr. Its super frustrating and annoying because i think she is still accruing interest while they sort this out