I had to browse a page backwards, but I found it:
https://steemd.com/tx/d27f823c4095364f06fd08fccffda9d4aece067a
A rare occurrence.
The last time that I searched for it, I checked more than one page backwards and did not find it.

Since then, I learned here https://steemit.com/busy/@busy.org/introducing-busy-org-the-bot-that-rewards-your-influence that it only votes if the user did not post a 'busy' tagged thread for at least 12 hours, but since then it skipped a vote on me despite I did not post a thread for over 12 hours, as you can see in this thread, which was not upvoted by any one of busy's proxies:
https://steemit.com/life/@stimialiti/realife-story-buy-only-shirts-above-your-size

It came after this thread that this comment/reply is under.
Weird shit happens lately with many bidbots too, including the most reliable ones and I lost a long and hard worked draft for almost a day in busy.org.
I thought that I lost it forever, but it was salvaged after roughly a day when I checked for my drafts again.

Here is netuoso's explanation as to why the long downtime happened:
https://steemit.com/drama/@netuoso/open-letter-to-the-harassers-and-anyone-else-paying-attention-re-blockchain-freeze

Prior to reading it I thought that the reason was adoption/migration of HF19.5 or HF20 (19.5 is the one in tact)