RESOLVED: DevonThink Pro Office 2.3 hangs when starting OCR

When I attempt to start OCR, DevonThink Pro Office hangs with the wait cursor and I must force quit. So for now in Preferences I must uncheck Incoming Scans: Convert to searchable PDF, and I must avoid the Data->Convert->to Searchable PDF menu item.

Mac OS X 10.7.1 Lion Server. OCR worked before the latest upgrade.

Issue appears resolved after rebooting for another reason.