Tikiwiki requires many settings to enable the WYSIWYG properly.
YAML
preferences:
feature_wiki_paragraph_formatting: y
wysiwyg_toolbar: |
Bold,Italic,StrikeThrough,-,TextColor,BGColor,-,Subscript,Superscript,-,tikilink,tikiimage,Link,Unlink,-,Undo,Redo,-,Find,Replace,-,RemoveFormat,SpecialChar
/
Style,JustifyLeft,JustifyCenter,JustifyRight,JustifyFull,-,OrderedList,UnorderedList,Outdent,Indent,-,Blockquote,Table,Rule,-,Source,ShowBlocks,Templates,FitWindow
feature_wysiwyg: y
wysiwyg_wiki_semi_parsed: y