This is a strange error or bug that happens sometimes to me.
Okay, let me explain, it happend now for the 3th time already and I do not know how to fix it.
When you select a profile and use the ALT key + making a window will select only the reference points of only that profile.
BUT, I can't do that, I will select then the underlaying profiles and any other thing.
And it becomes more strange, it also happens in the same model if I am logged in to another computer.
And collegues won't have the problem, they can select reference points with the above mentioned method just fine. ( in this model!)
In this last model, I selected an UNP140 with plates and moved it (198mm) but then my screen made an flash and another profile, what was not selected, was 198mm longer.
Then I noticed that it didn't moved the bolts who were in the plates from the UNP140
So how can I fix this?