confirm you actually have a panel memory identified in the files to be loaded in the right hand area of the screen under the load logo.
go to page 2 of the load page and switch everything off except panel memory, then load the panel memory on its own confirming that the correct changes take place. If not the files were not saved properly, and need to be re-saved.
are you looking at bank A results? if you are looking at bank 1 results and load 3 bank panel memories then bank 1 will correctly not change.
on setup & tools page 3 leave the save option mode set to HDD load, then you will always overwrite the correct original combination of files when re-saving from a sx6 load.