Mmm hmm.
Mmm hmm.
Have you exited the game since this happened?
If not try typing this:
;eq echo "#$my_workshop_room"
And see what it says.
If you have already exited the game then try running the script again first and let it take you to the workshop first before doing the above.
Also what does it say when you walk through the door?
Something like...
The hyacinth-inalid door opens easily as you pass through into your workshop
???