I have a problem with the "listing posts by tags" function in the core of WP.
When an update of different plugins occure, the tag/tag1+tag2 sorting/listing stop works.
Why is it so fragile? This week I had this occurence twice, first time with the WidgetLogic plug, now with another (Im still looking for wich one).
Its a pity, as I see I cant relie on this core functionallity as a feature in my site for listing posts in areas.