The new version of IMVU poses several problems with this Rooms (And others rooms and products), it is recommended to use the older version until the bugs are fixed by the Staff of IMVU.
For desactivate the new UI, in the menu of your Messenger IMVU : Settings... unselected Use New UI.
And restart your IMVU.
If persisting bugs, use Menu Help of your IMVU Messenger and Tools... Clear your IMVU cache.
And restart.
Waiting the full loading and you can use the triggers sn01 to sn17 and bg01 to bg17.

PRO Photo Room 17 Background colors + 17 Pictures scenes

--- TRY IT BEFORE BUY !!! ^^ (Public Room) ---
This product is updated : For any bugs, Clear your IMVU Cache and restat... Thanks ;)
Thanks for all good reviews and encouragments !!! :)

NEW Pro. Photo Room : 17 Backgroud colors... 17 Pictures scenes...
Triggers for background colors : BG01 to BG17
Triggers for pictures scenes : SN01 to SN17
Triggers For Help : HELPON and HELPOFF