I've verified and rebuilt my data. I'm on the latest version of QBDT.  The check was deposited and recorded in the bank in July. It's no longer in undeposited funds.

 This was a sales receipt payment and not an invoice.  The bounced check feature is still grayed out when I go to receive payments and enter the customer name and enter check as method of payment.

I then put in a customer who is invoiced and has payment terms who we have received checks from in the past. The bounced check feature remains grayed out for them as well.  When I go to customer center and select the invoice and history for that invoice, I can Go To from there to the check receipt and use the bounced check feature.  But not if it's a sales receipt.