If you have data filtered, then sort the filtered results, the position of the records will change in the underlying table. This means when you remove the filter to display all records, portions of the original list will have changed.
To combat this, we can use what is known as Filter Views.
A Filter View behaves like a snapshot of the filtered data. Once activated, you can freely filter and sort the data as you wish without altering the original version of the data.
If you are collaborating with others, their version of the data remains unchanged as you filter and sort your perspective of the data.