Title says it all, this is needed to be tracked down in order to find out how to fix it. Temporarily the user can disable Thin Title tooltips ands Tasks previews in order to workaround this.
related to bug 416869
(In reply to Patrick Silva from comment #1) > related to bug 416869 so this is not Latte fault?
(In reply to Michail Vourlakos from comment #2) > (In reply to Patrick Silva from comment #1) > > related to bug 416869 > > so this is not Latte fault? Apparently no. But I'm not sure because I'm not a software developer.
*** This bug has been marked as a duplicate of bug 416869 ***
*** This bug has been marked as a duplicate of bug 417939 ***