Can't list items in alpabetical order

PHP 5.6.30
Joomla! 3.6.5 Stable
FlexiContent 3.1.1

I'm trying to list items in category list order: title alphabetically, using both english and greek entries but it mixes up the languages and the letters.
An other thing that i wanted to do but didn't found the way to, is to have some entries appearing first of the others, as featured.

Do i miss sth in configuration? Is there any guide ho to do this or it is a bug?
Thank U

in your category you can allow order type

Sorry but i didn't understood what you mean, can you explain a bit more?

Hello

you need to make sure that you have configured it to use alphabetical order

also please note that it happens that some times that someone has mistyped english letters as Greek
e.g
English A
Greek Α

The above are 2 different letters but they look the same, so someone can type English A and the switch to Greek and continue typing

above mixing items of different language that also happens according to configuration

I have 2 screenshots.

The first is for the configuration - where i may have done sthg wrong- so i show it to you in order to guide me if it is what i should do and/if there sthg i miss.

The second is the ordering i take after a check i have done for the letters in en - gr - witch was and is ok, so there is no way that i have mistaken the keyboard layout.

Hello

pictures shows that you are looking at the wrong place
- that is the list of "sub-categories" !
it is not the ordering of "Items List"

please go to the "Items List" and find similar parameter(s)