It occurred that one day tables in Writer became invisible. They are occupying space in documents and may be selected with their skeleton (positions of cells) become visible. The same with newly inserted table. MS Word displays same tables in same documents correctly.
I don’t remember any special events before it happened like crashes, upgrades etc. The system is Mint 17.3. “About” tab says “Version: 22.214.171.124 Build ID: 1:5.4.3~rc2-0ubuntu0.14.04.1~lo1”
Will be grateful for any help or clue to a solution.