I saw [@dsr](https://linux.codidact.com/users/53004)'s user card.
![user card](https://linux.codidact.com/uploads/zgnADtZrg5qW4ZPxp1KHVzzH)
As you can see his `sum of received votes` is 1. But, if you visit his profile than it will show you that he has a question and answer, both of which have 1+1=2 upvotes. He didn't get any downvotes. In Linux meta and Q&A none of questions have any downvotes.
But, I remember I had downvoted his post. I had removed the downvote also. But, the number didn't change. So, it is a bug.
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I was checking my profile also. In my user card, I have 5
![card](https://linux.codidact.com/uploads/YueZqCs7y5kcxPQ4UeCTg14g)
But, when I visited my profile I saw I have 5 upvotes (4 in question 1 in answer) and 1 downvotes (In question). So, that's a bug also.