Odisey,this will continue to happen to you.
And, opening a support ticket will only drive you nuts because they won’t get to you in a timely manner, and when they do, it’s always “I don’t see that on my end”.
There are so many bugs with wpmudev plugins, you are only wise if you run away now. That’s the best advise you can receive.
Here’s a link to a review about that [link removed per the forum guideines]
Feel free to post your own reviews there too about your experiences with wpmu-dev