Thank you for letting me know of these issues!
The item capacity bug is fixed now in the latest version, but it takes a bit of work to fix it retroactively, but if you haven't gotten the next level of the upgrade yet (like capacity 2), if you get that, it will work now.
While it should not happen again anymore, I'll try to fix it retroactively as well in case similar stuff happens again.
I can't seem to replicate the door issue however, could you describe it in more detail, what you do and what happens?