Variable product problem

I have added a variable product and create 4 variations with each price set to 100.

Then the next day I have change the price for each one to 90. Some of them are marked as Short Term, some not. Some of them have Start Sale Date set and some not, so I can get all different options.

I have noticed that in variable products “Date” is set, but “Price” is not set under “Omnibus Directive” section. Then I have checked front page and there is not sign of “30 day price”.

If I do the same on simple product, everything is working.