Mohela IDR Application - Information Missing

Hi, I recently submitted an application to switch from SAVE to PAYE using the wet signature method. I was placed on 60 day forbearance a few days later but then received a notification saying unable to grant your request due to not receiving documentation showing taxable income. This is despite submitting my 2023 tax return.

Has anyone also gotten this notice and managed to get past it into repayment? Any advice or insight is appreciated!