Hi, everyone.  We've found a workaround for this issue:

(1) Void the check in BILL.com but (this is important): uncheck the box to sync with accounting software so it doesn't sync

(2) Make a JE in your accounting system. We DR Money Out Clearing and CR the original account used to issue the payment, including the name and proper class (if using classes in QB)

(3) Reissue the payment.  We usually add "RE" in the invoice name for the reissue so we know it is a reissue.

Hope this works for you?