e-file rejected and mailed check with paper filing

My e-file was rejected due so I filed and paid via check.  Today my bank is showing an ACH hold on my account for the amount i sent via check for taxes due.    Is this a duplication of the check?   My understanding is if it was rejected then no $$ left my account electronically.   The check was sent a week ago and is yet to clear.  Concerning though that this ACH hold is an electronic payment and NOT the check and thereby a duplicate payment.   Is it possible that the efile was rejected but the payment still taken electronically?