I'm a bit puzzled atm.
I use serendipity_event_entryproperties to mark some articles as persistent. Currently it doesn't work on my main page and 'Fotos' category buw it does work in the 'Android' category. (http://rowi.standardleitweg.de/)
Since my only possible action is to set the option or disable it I don'd know where to start. Especially as it does work at the Android categroy.
I guess it's either a bug or I cannot see the wood for the trees