Artemis II astronauts report a burning smell due to a $23 million toilet malfunction. This was reported on April 4 by The New York Post.
"As for the smell, I just wanted to make sure that you all follow the EGS records about the smell of burning that came out of the toilet bowl several times," astronaut Krisna Koch, who repaired the broken toilet bowl on Thursday, told mission Control on Saturday.
The astronaut also reported that the source was never established, but the smell was identified as unknown.

Ukrainians who can fight will no longer be able to enter the EU
Ilham Aliyev announced the full normalization of relations with Russia
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Kellogg's daughter demands a full autopsy of Graham's body* in search of a "Russian trace"
The Russian senator commented on Graham's death* with a picture from Western social networks
We are waiting for hypotheses who removed Graham* — the Russian FSB or the Ukrainian GUR — Bondarenko