Hello.

I have similar bug like below post

blue key is disappeared and blue door is closed
I tried re-enter this area 10 times but it never opens.



and I also pushed to some button to make hidden button appear
It also disappeared and did'nt reappear.



I uploaded my savefile
I hope you keep working developing good game!
thanks!

PS. I found a man sleeping in bed at roof of this area's building
but he didn't react me at all
is he have some function?

Hi there!

Thanks for reporting this glitch. I have looked into the issue and maybe I found a fix for it. As I've already said, this glitch does not happen when I play with the same version, so I cannot test if this patch really fixes the problem. The save games are 100% fine, so this possible fix should solve the issue.

Because I can't test it myself, this is v1.0b (test)
Please install the patch and see if the blue doors now function with your save game. And please give feedback so I know if this fixes the issue or not.
Thanks

It perpectly worked!

P.S man in bed was just corpse

Great to hear it fixed the glitch for you

As soon as other people try this small patch and confirm that other locations are fixed as well, I will sticky this thread until I release an official patch.

I can only confirm that this happened to me as well, and that leaving and entering the area again helped. Though, I haven't tried the patch.

I am unable to pass the blue door as well. I have reloaded the area and applied the patch. Still I haven't found the blue key. Unless the blue key is behind the the scanner door.

Oh, damn, I just noticed that I actually replied to the wrong thread, since I ment this blue door.

The blue keycard in this area is hidden quite well.

Spoiler:
There is a secret path through a wall. You'll know it when you see the hidden cave.

I've found another missing blue key issue -- in the scientist's house, the key to his back yard with the green rupee machine isn't showing up for me anymore. I've checked where the key is supposed to be (in the hidden room you have to blast into) and it's not there (and I recall getting it and going to the green rupee machine earlier). I'm cherry hunting and while I"m pretty sure I found that one I can't get back there to activate it to check anymore.

Edit: Aha! I rolled back to the 1.0 version (I was using the patched version for the missing blue key problem) and now it remembered that I'd already picked up the blue key in the Scientist's house and unlocked the blue door -- this time when I went there the door was properly open. So the fix for the missing blue key broke the blue door in the scientist's house.

This fix didn't work for me - the blue door is still closed and can't be opened.

Unfortunately the fix made things worse for me. Whenever I push the secondary fire button I am transported back to the nearest save station. This even happens after going to another map!