I have been having the same issue.  I haven't received any email stating this check wasn't good.  I have deposited these same business checks from my client for years.  In the last year, I continue to get the message "Whoops, something needs to be fixed" then it says Hmm, that didn't work, tap "review check" to try again.  It continues in this loop.  I uninstalled the app, reinstalled, changed the online payment reference in QuickBooks to received payment to "undeposited funds" and to "QuickBooks checking" with no luck.  The date on this check is 4/4/24 and it has been erroring out on me since I received the check.  The customer requested I cash the check, however, I don't know how else to deposit this check if the app keeps erroring out during the deposit check process.  Please help.