Undiscovered item when trying to repair iron atmo suit when I have both feather fibers and iron....?

There isn't any worn out suit , so that's undiscovered.

There was an "fix" to show recipes that lack some of their ingredients (if you have none of the ingredients, the recipe still doesn't show up). The result of that fix was that you can't cue up repair recipe for worn atmo suit unless you have a worn atmo suit first

Thank you both.

This was my first base to successfully shoot down the impactor, so (for me) the first time to actually get to the stage of making atmo suits.

I had a 'missing' suit at the end of the day and assumed it was worn...I learned after posting this that in fact I had a connection between the base and the lower areas that I was unaware of when an unsuited dupe died of suffocation trying to dig a deep ladder. This was quite a few cycles after activating the suit depot and some time after posting this query.

I then noticed a suited dupe within the base, accounting for the 'missing and presumed worn' suit that prompted my confusion.

One tiny little temporary connection created by melting ice that formed a neat little 'stairstep' connection that apparently had only existed for one or two cycles.

One of the reasons I have 5971 hours in a game I bought while it was in early access as an alpha release. And I still suck at it!

 

Changed Status to Fixed

Recipe will be discovered automatically in a future hotfix/update.