Recently Accessed display switch bug

Hi,

I've a small display bug with Windchill 10.2 M10 and Mozilla Firefox :

Two of my user switch their Recently Accessed view.

The first move an object or modify it, and the second see this item in his own Recently Accessed, but that's only between this two user, not with the other.

How it can be possible ?

What to do to fix it ?

Thanks,

Berthelin Benoit