Symptoms

we are using tooltips on some fields. for example radio buttons.
But after update to 4.6.10 users are missing the tooltips

after some research, I find out, the tooltip only will be shown, if you focus on a specific position on the Radio button Frame, but not on the whole field, like before
 

Diagnoses

N/A
 

Resolution

The resolution was that the Coldfix roll up for 4.6.10.5 was applied and this solved the issue.