2.7 hidden object problems to 2.8

Question

in 2.7 my file the items were saved hidden 2.8 the same items are not unable to be unhidden. it is a lot of work and put in this and if you tell me how to fix and/or update to repair this problem would be nice

Answer 1

There is an option called "enable in the view-port" when you right-click a collection. Try using that.