Steps to Reproduce

• Add the Choose Label macro to the page with the 'Show suggested labels on the label dialog' selected
• Add an H1 heading to the top of the page 
• Add text that adds exceeds 437 characters, e.g. Storage format
   

No signature of method: com.adaptavist.confluence.labeltools.LabelSuggester$_extractNounsFromHeadings_closure4.stripHeadingTags() is applicable for argument types: (org.jsoup.nodes.Element) values: [<h1>Heading</h1>]

Intermittent?

True, the size of the first header and the amount of content on the page seem to dictate when the error is thrown. For example, Headings 1, 2, 3 will throw this error after 437 characters; whereas Heading 4 does not throw this error. 

Affected Versions