RW7 has always done this but it appears to be getting worse with RW7.3.3
This image below shows what happens after a new stack is dragged onto the RW dock icon when RW is open and has a project loaded. RW shows a message that RW needs to relaunch and then 1, 2 or even 3 (as shown) extra running app icons appear.
OSX 10.11.6, stacks up to date (not beta)
Anyone else seeing this?