5.5 "remove extra grap between items" not working after start windows 10 (1803)

sorry gap*

Please clarify what you mean. Post screenshots of your taskbar with various options, and specify what's wrong with them.

Is your taskbar vertical? For a vertical taskbar, the option doesn't work. Otherwise, It should work like this:

no vertical. dont work after restart win. if open the explorer for example, after that it works

What do you mean by "open the explorer"? There might be a slight delay on startup before the option is applied, if that's what you mean. And of course, the tweaker should be set to run on startup. Otherwise, if you say that it works, I don't understand the problem (and what "don't group" has to do with this).

do not mind it, i chose default and already used to it