Thank you! Everything is okay now :-)

I had the following situation. There was a post which already had a @tipu upvote. I have not seen this tipu upvote and upvoted it a second time. Now this posting has two comments from tipu.
https://steemit.com/steemfest/@oleg326756/help-me-to-go-to-steemfest-in-krakow-please
Then I wanted to know, what happens, if I do the same with a posting of my own. @tipu did not make a second vote correct. But when I tried it again with STEEM, they disappeared.