I have a problem in a set of parts. When I want to move a part or a sub-assembly using my mouse, no problem. But as soon as I put a constraint (1 only) on this part no more movement possible with the mouse while there are still 2 possible directions. Other problems of the same kind. By inserting a constraint, the preview is not done while the "preview" box is activated (the small pair of glasses) for this I have to update the whole thing so that the part is positioned according to the requested constraint. It's quite annoying for a dynamic study... I don't know if I have activated a function or something. On the other hand, in the other projects, no problem. Hoping to have been as clear as possible...
I solved my problem. In fact, it was a constraint that caused the problem. The whole thing didn't seem that heavy to me, so I proceeded by elimination and it works. In any case, thank you.