can't see new vault space

[Shasriel]

ok some what of a newb here so please forgive me. With the LU19 we got expanded vault space, i am supposed to have 3 instead of 2. For some reason I can still only see 2 spaces with the popup window. I am using a custom UI but I've deleted the playerhousing and popup files in hopes of fixing it, still no luck? anyone help with what file i need to be looking at to get the window sized corretly. thanks!