Hi Geert,
There is indeed and issue whereas this thread hasn't been indexed withing the normally allotted time. I confirmed this by searching for the title with quotation marks ("") and using the filters on the left to search for discussions only.
I will notify SCN's IT team of this issue to make sure the search index is running so there's no need to open a new thread in the Bug Reporting space. In the meantime, please consider using Google Custom Search- SAP Community Network Search.
Jason