Yes I placed the items,killed the statues. Now I'm supposed to ring bell twice light candle open book then ring bell again but the dialogue box for that will not come up.
Hm.. I'm sorry, but if you're absolutely sure you got all 3 items placed on the altar and the box doesn't show, then I don't know how to fix that on PS4.. on PC it could be an option to force progression via console commands. (assuming console commands is not possible on PS4)
But first floor doesn't take too long to clear? Maybe you have a save just before going in? Autosave perhaps?
This kind of thing can happen, it's fairly rare now with the EE's compared to vanilla but the infinity engine is still prone to this kind of bug. It usually takes going back to before you entered the area, in order to fix it.
Addendum: Making named hardsaves at the start or just before loading into a major quest area such as watchers keep and on every level of it can save you some frustration going forwards.
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But first floor doesn't take too long to clear? Maybe you have a save just before going in? Autosave perhaps?
This kind of thing can happen, it's fairly rare now with the EE's compared to vanilla but the infinity engine is still prone to this kind of bug. It usually takes going back to before you entered the area, in order to fix it.
Addendum: Making named hardsaves at the start or just before loading into a major quest area such as watchers keep and on every level of it can save you some frustration going forwards.