You may notice that you are unable to apply a payment in Accounts Receivable if it had been voided before unapplying
We are currently evaluating this issue and will update this article when we have more information.
Steps to Duplicate
1. Go to accounts Receivable 2. Go to Payments 3. Select the payment 4. Notice it's voided 5. Go to the Payments and credits tab, notice this has something applied 6. Double click on the item and go to the payment and credits tab, notice we can't unapply it via the Add/Edit applications button