Since the release of ArcGIS 10.0, Esri has released several patches to address problems with geocoding services. Installing these patches will optimize your interaction with Maryland's Composite Locator and all other geocoding services you rely on.
Patch 1:Summary: When batch geocoding through ArcGIS Desktop, against the Maryland Composite Locator, the addresses shown in the "Match_addr" field of the results, may be incorrectly associated with the input address field.
Issues Addressed: NIM092346 - Batch geocoding against a geocoding service may have incorrect results that the matched output attributes are associated with the incorrect inputs.
Applies to: ArcGIS 10.1 SP1 Desktop
Download Patch 1 from the Esri Support Site Patch 2:Summary: This patch addresses an issue in which ArcGIS Desktop and Engine applications may crash when batch geocoding against a composite locator that is published to ArcGIS Server.
Issues Addressed: NIM093350 - Batch geocoding against a composite locator that is published to ArcGIS Server causes ArcGIS Desktop to crash.
Applies to: ArcGIS 10.2
Download Patch 2 from the Esri Support Site Patch 3:Summary: This patch addresses issues with using large locators in ArcGIS for Desktop and Engine which may cause the application to crash.
Issues Addressed: BUG-000083308, BUG-000083323 and BUG-000083706.
Applies to: ArcGIS 10.3
Download Patch 3 from the Esri Support Site Patch 4:Summary: This patch addresses performance and stability issues when geocoding with ArcGIS for Desktop, Engine and Server.
Issues Addressed: BUG-000089702, BUG-000089445, BUG-000089437, BUG-000088955, BUG-000088672, BUG-000087115 and BUG-000087051.
Applies to: ArcGIS 10.3.1
Download Patch 4 from the Esri Support Site
This patch addresses performance and stability issues when geocoding with ArcGIS for Desktop, Engine and Server.
BUG-000096532, BUG-000096523, BUG-000096144, BUG-000096008 and BUG-000094723.