When users go into a cube to enter their data, they are just seeing grey cells, instead of white. If they go to "edit status" in one of the cells they would normally write to, they get "cell is not editable - do not have write access to the element"
Although I have not changed any of the access rights for anyone, since this was last done, I thought I should check... Some of the elements needed to be changed to "Write" from "None" in the element security editor. I did this and then refreshed security again, then went back in to look and found that they had reverted back to "None".
What am I doing wrong???
