Multiple sidebars are not stable and loose widgets_

That is a very seriouse issue i have as i dont get what is wrong either with my code either with new wordpress.

I add multiple sidebars, around 5 widgetized spots, by registering one by one like i alwasy did on previouse wp versions. After adding widgets they auto save then the next time i get to admin and widgets i see the just jumped around the sidebars and changed its order etc.. but the worst after i get to the site all widgets are gone or position changed.

i cant find a solution and i cant find similar questions.

please, if anyone met the same damn issue, advice…

thank you.