Please ask your question in https://ask.libreoffice.org/.
And show there what is your macro and better a sample file.

And if you want to open the document where you left it, you only need to have some fields for the user data, covered in Menu/Tools/Options/LibreOffice/General

No: I am speaking not about a new macro, but about one *already working* in the past, and *for years*.  
It is only in the last few days that I have this problem: and that's way I think that is a bug.
Consider also that that macro works as expected *manually* (after opening a file): and that is another reason for I think that is a bug.

(In reply to m.a.riosv from comment #1)

> And if you want to open the document where you left it, you only need to
> have some fields for the user data, covered in
> Menu/Tools/Options/LibreOffice/General

But, in this you are right: now (unlike in the past), even without a macro, a document is opened focusing the point where was closed. 
Therefore my macro is now not necessary. 
However, it is curious that it is not only not necessary, but also dangerous, so to say :)
Something has changed...

That is the reason I commented to ask in the forum, there are a very helpful people.
The better it's to add to the question the file with the macro, otherwise no one can help to find the issue.

Duns, you should either attach file with those macros or close the bug.

I re-write my post, because of my typing errors. Sorry (could you delete it?).
Yes, your tip worked, but recently I have a file (just one) that doesn't opens where it was closed. But it opens at the beginning of document (odt).  
It has embedded my personal data, so I don't understand this strange behavior.

This started as a macro bug and turned out it's not or some other issue.
Bug report is single original issue so I close this. We don't know the cause. 
AS for opening, that's different, maybe bug 146988.

That bug is quite different. At the present I have problem only with one file (and I don't know why).  
You asked my macro. Here you are:

sub vai_qui

If ThisComponent.supportsService("com.sun.star.text.TextDocument") Then

oBookmarks = ThisComponent.getBookmarks()
If NOT oBookmarks.hasByName("qui") Then
   Exit Sub  
End If

ViewCursor = ThisComponent.CurrentController.getviewCursor()
Bookmark = ThisComponent.Bookmarks.getByName("qui").Anchor
ViewCursor.gotorange(Bookmark, False)

else
   Exit Sub  
End If

end sub

With this macro on opening document I before I go to the right point, but after a few seconds I go elsewhere (without any reason).

LibreOffice returns to the last saved position
A.) if you save in ODT format
B.) you have an user name specified in options - User Data.

Usually. But not always.

"Reopened" is wrong status, when known fix doesn't work.
This bug was never confirmed, not it has steps for independent test. 
So you have a problem with only one file. 
Did you try opening multiple times without macro, to see if really bug 146988?
This cannot stay open unless you attach a file, without personal info.

recently I didn't notice this bug. Therefore it seems solved.