Calc --> Function Wizard --> find "char" in the list of functions --> hit F1 --> missing documentation. :-(
Created attachment 130000 [details]
Current description of the Char function
Cannot reproduce. The help page opens correctly and the Functions side pane displays the correct description too.
In case of the wikihelp, from LO 5.2 I get redirected to
So all seems to be good.
strange. works now. Thanks for checking.