Oxidation of 4-tert-butylthiane (see Problem 16.23 for the structure of thiane) with sodium metaperiodate gives a mixture

Question:

Oxidation of 4-tert-butylthiane (see Problem 16.23 for the structure of thiane) with sodium metaperiodate gives a mixture of two compounds of molecular formula C9H18OS. Both products give the same sulfone on further oxidation with hydrogen peroxide. What is the relationship between the two compounds?