Hey Vladimir!
Sorry for not getting back to you -- your question must have gotten mixed up in some of my others. I think I understand what you're asking in your question, but do you think you could provide a screenshot or a short video of the issue you're having? It will help me figure out what is going wrong in your Blender file.
Thanks,
Grant
I had the same issue watching this now. The problem (for me) occurred because my "pivot point" (the 2 circles with a dot) was still set to the "3D cursor" from a previous vedio, unlike Grant's which was set back to "Median Point" since his instance of blender was reset.
So try setting your pivot point back to "Median Point".
I Hope this helps :)