Chart Cannot be Sorted by Axis Field in Ascending Order or desceding order by measure value

hi i have the measure value of dead % where i need to sort by ascending when i click initally it is sorting and the values are appearly properly but when i traverse from another to original tab i was not be see the highlighted descending (AZ) option . I tried mutiple times but it is the issue with calculated measure . I am missing anything here?

if you see above the highlighted part of descending or descending wanished . But the order is intact ?. should i worry here since if i deploy the report for other users it may be ascending ?. but why this descendign highlight is going away . I see for direct measures i am no seeing any issue where i can see highlight for descsending . i am doing any mistake here?