Discovered in FPC version 3.2.2-r49371 In a {$region} tag, single quotes may be used to label the tag. eg: {$region 'label'} If the label contains a closing brace '}' character however, the parser considers this the closing brace as the end of the region tag. eg: {$region ' { somelabel } '} The region tag is considered closed at the closing brace within the quoted string. Additionally, the Lazarus IDE syntax highlights this incorrectly also. Easy to work around, but irritating.