Email Item lists row height Appearance settings

Recently I upgraded to the latest 9.2 version of eM Client, i suddenly find my email (items) list has an extra white line for each email/ item in the list.

I tried to reduce the row dimensions in the appearance settings yet I am unable to get rid off this extra while line between each email item in the list. Hence I can see fewer emails in the list by default.

I am even toggled the “touch input” selector but still see the extra while line for each email in the email list.

Anyone else running into this problem? Any suggestions on what configuration to change?
thank you