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Resolved! Why sometimes the amend/index doesn't work?

In below code, a1 doesn't work. Any ideas why? myObj: (5 7; (`a; `b ; (4 5)));a3:.[myObj; 1 2 1; {count x}]; // i.e. ((5 7);(`a;`b;4 1))a2:.[myObj; 1 2; {count x}]; // i.e. ((5 7);(`a;`b;2))a1:.[myObj; 1; {count x}]; // i.e. it doesn't worka0:.[myObj...

vivo by New Contributor II
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