Linked&embedded blocks not showing when in a worksession

Hi everyone!
As per title, I have an issue when using worksessions: linked and embedded blocks on an inactive (turned on) file won’t show (see attached image). Tried searching the forum but I cannot manage to find any solution, although other people had the same problem.
Any news/suggestions about this?
Thanks!

How it should look like:

How it looks like:
image