Not sure what you mean by "SP"......but, while in the ERA environment, [or any assembly Configuration for that matter] use "Save Display Configuration" command & then the "Save" [Ctrl+S] command, in that order, to ensure it is captured to the .CFG file.
I don't use SP, but make sure and go into the properties of your drawing view, go to the display tab, then down at the bottom make sure that you have "match" checked and then click on the check button. This will then force it to show as out of date if it is. You have to do this or it won't know anything has changed.
Solid Edge 2019 Windows 7 Professional Nvidia K2200 & Intel Xeon "You're doing it wrong"
Thanks for the suggestions, but it is still not taking.
It is to the point, I thought it would just be easier to redraw the exploded view. I cannot create a new ERA either. And have not had this point outside of SP (Sharepoint, sorry for the confusion) as I have done plenty of exploded views there before. But that said, this is a left handed assembly. The right handed assembly is also in SP and I revised that without this problem.
This all makes me think it a *.cfg issue. But where to go from here? I don't know.