I think I might have messed up my order?....

I've seen up through Heaven's Feel, although I think I may have missed content from before UBW but that's for another time. I just finished what I believe to be next, titled:

Fate/Grand Order: Shinsei Entaku Ryouiki Camelot 1 - Wandering; Agateram

Did I mess up or is that where I should have been? It felt like a beginning to me but I'm not sure and the watch orders on anime sites are hard to follow. Thanks!