Latest tip of develop as well.
I can’t reproduce this on the develop tip. Adding multiple files via the “Add existing files…” menu item triggered either via a right-click or the “+” button works as expected. What platform is this on? Is there anything unusual about the files you are trying to add? What is the behaviour you’re seeing - do any files get added at all?
Ah, I see the Windows tag now… I can reproduce this and have a fix that will be on develop shortly.
thanks!