Paul,
Of course, a correlation of something with itself is 1.0. I do not know why I included that detail. I should have just said that all off-diagonal correlations are 0.999 and left it at that.
I replicated your result. When the censor file is all ones, there is no problem. The problem occurs when at least one time point is zero in the censor file. I am almost certain that I am doing something wrong or there is a problem with my data, but before we close this case in our minds, would you humor me and try to recreate the problem with at least one time point being censored?
Sincerely,
Dante