That is not how 'the switch' works, you just go way down the pecking to the extent your items are almost invisible in searches but they are still there. If half your listings have gone altogether then pick any one from three: there is a glitch, you have had some kind of restriction so relists or GTC aren't happening or you have fsiled to comply with something, for instance adding the SKU numbers for certain ctegories.
Of course there are probably more bu those would be my first three to check.
____________________________________________________
It says in this book I am reading that by 2065 80% of women will be overweight.
See what a trendsetter I am?