Configuring Display of the Save Password Dialog - Got it box disappearing

We have set up the configure display of dialog box as per however the save password "got it" pop up box is disappearing quicker that we can hit save.

I have done this for several clients without any issues, with the pop up box staying until we have taken an action, it is like there is an auto response happening somewhere, I'm guessing it could be an internet option setting but can't find it - has anyone else come across the same problem?

(latest version of Smartview and all of the Registry and smartview health check options are set correctly, and no difference with Private connection).