Weird Notes 8.5 Designer Help Db behaviour

Tags: Lotus Notes R8.5 Designer Help
Earlier today I came across the following popup when I clicked on the 'IsOnServer' link in the Lotus Script NotesSession class document: in the 8.5 designer help database using the Lotus Notes 8.5 Standard client (and no Marzel this is not on my company Laptop - I still need to re-install that brick )

A picture named M2