Adjusting a partially paid invoice

 In 11.5.10.2, an invoice exists with a partial payment for payment method of check.  This payment was issued and has cleared.

A second scheduled payment exists for payment method of Electronic.  This payment was created and immediately voided.

The user needs to be able to issue the remainder of the invoice using a payment method of check; however the voided scheduled payment shows Electronic and is unable to be deleted, nor can the amount be reduced to zero.

What can be done so that the remaining balance of this invoice can be paid via check?

Thanks!