Is this some kind of a flaw in the theme.?
I believe so, can you pm me your ftp and admin website access details, I'll take a look at the issue. Sorry for inconveniences.
As to the landing page - I'm not sure, as I already have IVA theme with the landing page. Soon I will be publishing new theme, light one, with the sign-in landing page. Also it will have new user listings, that are provided via plugin, so no other themes in the store will have it. Will be very good-looking.