I recently installed RM7 on my laptop PC. I also have RM7 installed on my desktop PC. Both are Windows 10 PCs. I'm using the same database and media (stored on Dropbox) for both RM installs. Media links break because they point to different local Dropbox locations - L:\dropbox\genealogy\media and C:\users\...\dropbox\genealogy\media.
I assume that if I fix the broken links on my laptop RM install, it will change the links in the database - and therefore break links in RM I use on my desktop PC.
I would love to share one RM database and media folder to both computers so when I make a change on either machine, I see the change in the other - and media appears the same on both machines.