ANY or SOME is TRUE if the collection is non-empty and at least one element matches.
EVERY is TRUE if the collection is empty, or if the collection is non-empty and every element matches.
ANY AND EVERY or SOME AND EVERY is TRUE if the collection is non-empty and every element matches.
As EVERY on empty collection is True. as arrayindex will not index on empty collection, It can’t use ARRAY Indexing.
Array Indexing can be used when non-empty collection is true, Only on ANY or ANY AND EVERY can pick array index.
If it is okay you can try ANY AND EVERY