Source & Default Filters: expression Saving issue

I'm trying to save the filter with Or and 5 criteria. but it only let me save 4.

do you know any workaround or what is the litmit of this

a!queryLogicalExpression(
operator: "OR",
filters: {

a!queryFilter(field: "year1", operator: "<", value: 2021),
a!queryFilter(field: "year2", operator: "<", value: 2021),

a!queryFilter(field: "year3", operator: "<", value: 2021),

a!queryFilter(field: "year4", operator: "<", value: 2021),

a!queryFilter(field: "year5", operator: "<", value: 2021)

}
)

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