I am hosting several educational Typo3 webpages and I upgraded them to 13.4.27 yesterday. After the upgrade the backend textfields in the extension “news” and in the Bootstrap Cards (using t3bootstrap) were not available any more. Saving such an entry deleted existing text field content. New items did not even show text fields.
Downgrading to 13.4.26 solved the problem - but I’d prefer a solution with 13.4.27
These were CKEditor RTE fields? This component was updated. Have ylu cleared the TYPO3 cache and maybe your browser’s cache? Did you check the briwser javascript error console?
thanks for the quick response - and your ideas really helped me tracking it…
Indeed they are CKEditor RTE fields, and they do not work on any backend page, as I realised now. Typo3 cache is always cleared by my update script, and I also cleared the local cache.
But the JavaScript error console indeed tracks an error - the problem seems to be with the IconPack Extension: plugincollection-plugin-invalid-constructor
and - according to the issue tracker - they released a new version of iconpack yesterday which should solve this problem.
Will try this immediately and report