When using embedded Chrome on some specific web pages, I have noticed that if I scroll down on the page, then switch to another open session, the page jumps to the top when I switch back and I have to scroll back down to where I was.
It doesn't happen everywhere, I have mainly noticed this on Mediawiki based sites like Wikipedia. Also it happens specifically if the last place I clicked before switching was within the page. If I click anywhere in the user interface (like the browser navigation area or the RDM menus) before switching then the page will not jump when I switch back, but if I click within the page itself (like highlighting some text) before switching, then the page will jump when I switch back. It can make it difficult to do things like copy and paste text from a wiki page to another session which is something I actually do frequently.
What version of RDM are you running?
Is it possible to send us a small video of the behavior?