Weird problem in AdminCP with users searching* ID's not always displayed
 

Heya*

Having a very weird problem with the latest version of VB 3.8 .4 PL1.
I'm not sure if the latest release caused this problem* as I dont know how long it has gone on for.

However* when searching for users in the admincp and clicking on them* about 10% of the links dont provide an ID and instead make a broken link* see below in the screenshot highligted in red. For the other 90% of users however* the link puts in there ID and it works perfectly.

http://upload.digiex.net/files/736qcsw6k4s8ysfhu4l9.png

However* nothing else is broken in the forum* and if I browse the forum logged in as an admin and click on there username* I can view there profile and then click Edit User Profile and enter the AdminCP options for there username there.

Its not a major breaking issue* but it worrys me slightly espically when it comes to importing into VB4 at a later date.

Anyone have any ideas what could cause this* and if theres a solution?

Many thanks indeed.