Can’t change permissions – “The parameter is incorrect”

Grievous wrote:

Well it was a few weeks after I asked for a set of screenshots that allowed us to see exactly what you the users were looking at, that I got the info I had asked for and was able to reproduce it when someone provided us with a view of what they were seeing. I'm definitely eager to help, but if I ask for the information and no one wants to provide it, I can't really do a whole lot. It's not as if I've been ignoring this thread and you didn't seem to be chomping at the bit to provide us with the info we needed to reproduce it.

Well it's been a few weeks since I sent you the information you asked for. You've confirmed that you're now able to duplicate the problem, and since then the only information we've been given has been 2 snarky responses (one repeating you'll let us know once you've made progress and the above message). I sorry to say that this doesn't seem to be as high a priority for you as it is for us.