Why is my checking profile not applied to an XMetaL batch check?

Check your extraction settings that each individual .json file contains. To do this, browse to:

%acrolinx_configuration_root%\data\profilemanagement\extraction

In each .json file, you will see a 'rootElement' parameter which identifies the doctypes (more specifically than just by public/system id). For example in a reference document:

The root element is most likely the cause for the error when batch checking. Try removing the root element parameter in the .json files manually to see if the plug-in inherits the correct extraction settings.

Please keep in mind, if you are batch checking more than one document type simultaneously, concept, reference, topic, task, etc., it could be that the plug-in is not able to choose the correct extraction settings as it can typically only use one extraction setting at a time.

If this is your scenario, try batch checking groups of document types at a time (concept, reference, topic, task, etc.).