Hi there,

We are having issues with SEOChecker when going from v7.15.2 to v8.18.3 The issue is that the SEO fields for title/keywords/description are not displayed, no errors happen either.

After a lot of debugging we finally removed the SEOChecker property and readded it, which fixed the issue - this pointed us in the direction of the prevalues, which do not seem to be migrated correctly.

After a migration the db table umbracoDataType shows the following for the SEOChecker.

{"SEOCheckerPreValueProperty":"<SEOCheckerDataTypeConfig><TitleMappingAlias /><KeywordsMetaAlias /><DescriptionMetaAlias /><ShowKeywordOption>false</ShowKeywordOption></SEOCheckerDataTypeConfig>"}

However, if I remove and re-add SEOChecker the value is updated to below, which then fixes the issue.

{"validationMode":"always","useKeywordTag":false,"keywordSelectionTool":"https://keywordtool.io/"}