Invisible Chests. They are there, they can be looked into, but they are not showing.

I loaded minecraft in my usual world and went into the storage room to find all the chests apparently cloaked by an invisibility field. They are still there, as is their contents.

Also, side note. I am having a honey of a time using the search system here. I am not exactly a huge tech savvy person. I cannot seem to get the search to invert to most recent postings of say "invisible Chests" or even the Affected versions. So again, sorry if this is a duplicate.