In earlier versions of LO, under 'Insert' there was an option 'Horizontal Rule', for selecting a form of horizontal line to be inserted.
In LO 18.104.22.168, it is not only missing, but documents created under earlier versions with 'horizontal rule's nserted will not display properly.
Steps to reproduce:
Go into 'Insert'; There is no longer the option 'Horizontal Rule'
Edit a document prepared under an earlier LO, and has instances of Horizontal Rule lines in it.
See that the Horizontal Rules do not display properly.
Current behavior: 'Insert' option for Horizontal Rule is missing, and
existing documents do not display correctly.
Expected behavior: Continuation of Horizontal Rule option in Insert, and correct display of Horizontal Rules in existing documents.
Operating System: Linux (Other)
Version: 22.214.171.124 release
*** This bug has been marked as a duplicate of bug 60858 ***