Thank you for letting me know about the Master bedroom stuff. I thought I changed the stool to be walked through, but I will check and see what is happening (it is the same stool as the library ones, which worked after I made the changes in the first place). I will have these fixed today.
I did not add a Kitchen Key anywhere, which is a big screw up on my end. I DO test the game as I make it, but I must have done so before the locked door was added and forgot to do so after.
Yes, you get complete access to all future updates with one purchase. I don't delete the file, but just replace it each time, so it is always the same file that is paid for.
Thank you for bringing these all to my attention, feedback like this helps me make the game more enjoyable!