Hi,
allright, I think, I understood my mistake.
I have DCS World, DCS P51-D and DCS K50.
First, I had upgrade, P-51D to 1.2.0, and DCS K50 to 1.2.0 and DCS World to 1.2.0. After that, nothing working right.
I think that solution is : upgrade DCS World first, and only after any modules (K50 etc..). At this moment it's work, but i lost my HOTAS CONFIG...gggr and load config don't work fine.