I have seen this happen a couple of times in Logos 8 and I think there might be some underlying bug. I have always had my previous layout open with Logos. Now it seems to forget to do this on occasion and it is rather annoying. It happens on more than one machine, so I don't know if there's something on the server side or within the program itself that seems to perpetuate this lack of memory for opening the last layout.
Do I need to tell L8 to bring up the layout? This was always the default.