Portfolio overlay style title effect issue

Hi there,
I’m building a staff page for my website using the “portfolio-masonry” style from your theme but with the overlay style set to title effect.
this looks great for titles that are short and only 1 line but as soon as the titles go onto two lines the little popup element doesn’t “hide” properly when the mouse is moved away.
a little hard to explain so will send you the url so you can see what i mean. basically i want all popup elements to be completely hidden despite how many lines of text are in their titles.
hope you guys can help?

Ticket