Oxygen Not Included

Hi, I was looking at FrancisJohn's video on geothermal power (https://www.youtube.com/watch?v=kyoLDP2tUaI), and tried the trick for building a "spike" deep down into lava (shown off at around 4:30 mark in the video).

However, my dupes do not seem able to build through the closed horizontal airlock. Has this trick been patched out?

Aku makes a comeback, dupe hanging around an active nuclear reactor, bathtub and steam sauna, a background that goes from green to red for no reason but fluff, and a pip running wild. All of that inside a rocket!

Includes narco dupes dropping shovel voles everywhere, a full base (including nuclear reactor) inside a rocket, and other weird stuff.

My game says theres some granite there, but I cant dig, store or deconstruct anything there. It even blocks the light at this point. Is it just a bug or am I missing something?

I wanted to share this design, which uses a magma trapper, heat injector, and counterflow all designed by Saturnus (from the official forums and discord). Some details are provided in the linked imgur gallery, but I don't go too in depth in there. Feel free to ask any questions and I'll answer to the best of my ability.

Mostly I just wanted to post SOMETHING so that this community isn't entirely empty. Hopefully we can start growing this community as an alternative to the subreddit.