Mortgage amounts not correct in Net Worth report

If you created the Account s of 4/17/21 using the Quicken loan wizard then that's the correct presentation.  The wizard starts the Account with an open balance transaction that reflects the balance of the loan on the date of the Account's creation, it doesn't go back in time and make entries from origination date to the Account's creation date. 

If you want to see the Account's balance before 4/17 then change that opening balance entry to reflect the 1/19 date and the 1/19 balance, then go into your checking Account and amend the payments between the opening date and the creation date to allocate the principal portions to the new loan Account.  If those principal payments bring the loan balance back to the correct 4/17 balance you should be good to go.