Problem with apostrophes in user names?

Just checking if this is a known issue or something odd with our set up. We have found in AD Manager Plus that we are unable to open the properties for any users who have an apostrophe in their surname (eg o'brien). The users come up in the search results and their name appears as a link as normal but clicking on it does nothing.

This seems to be across IE 10 & 11, Chrome & Firefox.

I don't believe this was an issue until the last update was done fairly recently to 6.3.0 Build 6310 because we have always had these users in our AD & have been using ADMgr for several years. We don't have many users like this but I would have thought I'd have found out about it sooner if it had always been a problem!

Is this something others have found?