9 votes only

[Variable]

It looks like another user had the same problem, could you try the steps detailed in this post:

Features Vote Problem

I’ve now found a solution, to conclude this topic and help other users, who might have the same problem. In the initial situation I had 9 active votes, but approx. 6 inactive votes on topics that have already been closed. To get the missing vote back, I had to remove all of my votes from the already closed feature topics. Then I was able to use the 10th vote again. As far as I can remember, this procedure was not previously necessary, hence why I technically had a total of 15 votes.