Not sure how many of us use Neat Scanners but they listed a fix that includes a new driver for their NC-1000, ND-1000 & NM-1000 scanners with instructions on how to update. They call it a "temporary resolution".
http://www.neat.com/helpcenter/neat-mac-el-capitan/
http://www.neat.com/helpcenter/neat-mac-el-capitan/