I recently had the same issue.

this was my situation.

I went into reconcile and didn't look what was last Reconcile date and went ahead and skipped a month

( example month July reconcile but August wasnt done and went to do sep)

I added all the bank end balance and date for Sep Reconcile and pressed start reconcile.

after going through I noticed I skipped a month..went to click edit to adjust the reconcile for AUG and that was when I had a differed.

that is because the QB some how already is refinancing the reconcile data you put in for SEP.

what I did was made sure all the Deposit and beginning balance matched and then never closed AUG and continued to input the reconcile information for SEP . which then equaled out the balance issue I had...

recap: is THAT month all looks good just no Zero Edit the Reconcile to the new month and it will zero out that new month :)