Having problems with ”category selection” not beeing visible in tt_news backend?
This problem is propably caused by some extension that replaces tt_news flexform file. In this post I will tell you how to solve this if you are using mpassnewssorting (versoin 1.1.1), which caused this problem for me.
It is very simple, just download and open file /typo3conf/ext/mpossnewssorting/flexform_ds2_no_sPID.xml from your webserver, then go to line #160 and do the following change:
Now save and upload the file to your webserver, clear cache and it all should work just fine.