View Search: Search Within Category

dear all,

i’m facing the following problem when searching a view whoose first and second column is categorized and the third columns is sorted but not categorized.

when using the ‘search within category’ button on the first column (which is categorized" it finds the text in the second column (as well categorized) as expected,

but when the the ‘search within category’ button is used on the second column it DOES NOT find the text in the third column (not categorized but sorted)?!

this is strange to me, because when doing the same in the notes help / view ‘index’ the ‘search within category’ button finds also text in not categorized colums. (same struture of columns: 1. categorized- 2.categorized- 3.sorted)

what do I miss?

thank you for any help!

regards - jakob