Hey there Gleb!
Thank You for Your fast reaction and sure thing!
Well, the thing is, all of the elements besides the horizontal scroll use the same setting:
In general, when You start with one of the upper elements, they freeze, You click away and You can work the prototype.
When You chose first one of the red elements, lower ones, You get instafreeze and whole prototype is disfunctional.
Please advise,
With best regards
Bryan