MoneyWiz can group your transactions by status (Cleared, Pending and Forecast), which breaks the sort (each group maintains its own sorting) but brings order to your Account register. If you don't want this to happen, it can be easily disabled.
In order to change this setting, please click on the Filters/Sort buttonq then select "Status" :
You can customise your toolbar
You will be presented with a palette of combined filtering and sorting options. Filters are described in more detail in this article, while sorting is discussed here.