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Yes, they are from the Leo UI, it happens to my own threads two. My own started disappearing like 10 threads into that container

Try this: copy the URL, and open it in another window.

Sometimes that "resets" it.

Sometimes it just takes time, but a few I still can see from peakd so they got on the blockchain, but no from the Leo UI unless I manually change the peakd part of the url to leofinance.io