Maybe there was similar bug in 2.5.8 version. Don't remember as it is already 10 years old. I do remember that older versions had some problems with history saving, but in that case it wasn't showing any history at all. Don't expect to get support for such an old version. Openfire is also rather old, but i don't think it is related to this issue. Btw, 2.8.3 is the latest version. Not 2.6.3.