Loans were discharged but some balance still remains

I got some loans discharged under Sweet vs Cardona and they were discharged about a month ago. I noticed there was still a balance left between the 2 loans, with about $3500 in one and $1400 in the other for roughly $5k still there. I asked the company and they said they don't know and basically didn't understand why I was asking why there was a balance still.

Has anyone encountered this with their providers when getting loans discharged? One could be the remaining interest that accrued, but the other loan is less than what interest accrued for that specific one, so I'm not sure why it's not fully discharged/deleted?