ComboBox Filter CONTAINS

I tried to set up a ComboBox with filter CONTAINS:


However, the filter seems to implement the logic I would expect from STARTSWITH. I can select items by typing the beginning of the string, but trying to select strings by letters being not at the beginning of the strings results in an empty selection. A typical string I am using has the form “3004056243 AB Orange” and typing AB results in an empty list, as well as typing 00 or ang, etc.

Am I missing something?

Problem solved, sorry for bothering you…

Just out of curiosity, what was the issue? The solution could be useful for someone else struggling with the same thing.