My Lists are not showing all Lists
If you find that the number of Lists being displayed to you is not what was expected - i.e it's only showing Constituent Lists or Activity Lists, then you will need to de-select the List Types that were previously chosen to display or there are List Tags selected.
To do this, Open Lists
On the left of the Lists are two options - List Tags and List Types - If you deselect the options that are ticked or have been entered you will find that the List of Lists will alter to show all Lists that you have access to.
If this does not reslove the matter, then your cache may be full - see Screen not Displayed Properly