Kerry and Jeremy thanks for the feed back.
I do all my work in assemblies. I haven't used room layout for 4 or 5 years.
While I used to have a few hiccups, since the door profiling update its been a lot worse and would seem to have become even more unstable in the last half year or so. Possibly something windows has done.

(shrug)
I would happily go back a few versions to a more stable release than waste my time chasing ghost problems.
In the past we were quite happy making some seed cabinets and detailing doors in the part editor, It seemed like it was a bit more stable.
Its been so long since I had a good go in the room layout that I have forgotten all the reasons why I decided I preferred assemblies.
I think I had a couple of jobs where I messed up because I hadn't proofed them in assemblies that I decided I wasn't going to bother with room layout.
From memory I like the ability to be able to spin, wireframe, measure points, move around units quickly and easily.
I know room layout has a lot of tools as well, Its just not the same as Assemblies.
These days I don't bother with nice presentations. I just draw a floor plan and a couple of elevations in CAD.
I keep trying to notice what causes issues and I often have this feeling I almost have it, but when I try to reproduce it, I just keep on trying to reproduce it.
I have noticed that once the cabinet has been saved in an assembly if you save the cabinet out of the assembly it has already become problematic.
I've posted many instances of problems but it seems there is never enough information to help the programmers to locate the problems.
I don't do these long winded posts just for fun, I'm honestly flat out busy. But all these glitches cost me so much time I was hoping by posting them they would get fixed and save me a lot of time in the long run.
Its a bit of a bummer, I like assemblies, they work well for our processes and the way we think, its a feature of the software, but I suppose after all these years Ill just have to abandon assemblies.
I'll just have to give room layout another try.
As an aside point to Clint,
I love your work,

you have saved my bacon many times.
You are in an unenviable position of being the go between us users, management and the software technicians as well as fulfilling other rolls within the company. Busy man
Just wondering, unless its an obvious gotcha, is it still worth posting instances of errors that can't be reproduced from a seed unit or just save everybody some time and let it slide?
I have more glitched out stuff all the time, but if its just another tiresome glitch or bug that gets in the way and obscures / slows down real time work, is it worth posting?
And then again if we don't post it seems that the belief is there are no problems.
Thanking you
Mark