Hello i'm kinda new to Revit i just attended the Revit classes AUGI offered here in florida yesterday, but any ways to my question

i had drawn up a house on Revit and rendered it about a month ago and the rendering had reflective water and now i drew up and rendered a hotel and the rendered image had no reflective water, i added the water in the same way both times and even checked that the properties where matching, funny thing is i went back to the house i had rendered before and re-rendered it (mind you i havent changed anything in drawing since the last time i rendered with reflective water) and it had the same boaring light blue blob to represent water

what settings did i change in the revit dashboard to destroy my refelctive water

thanks for you help