So this only occurs if you stop immediately? As in how quickly?
I thought I was the only one having this issue. I have 2.6 installed and use mpc-hc as my external player. After I finish watching the movie and exit mpc, I go back to the desktop. Basically, WMC/MB is losing focus and remains minimized. If I use the green button from my remote to bring up MC on screen, I am successful 50% of the time. The other 50%,I have to end up using my keyboard.
I never had any of these issues with 2.5.3
I am still experiencing the problem, about 1 out of 10 times. I can not confirm that it has something to do with changing the resolution.
This might help you out. The problem seems to be mpc-hc with the newer versions of MadVR.
I am one of those who point out the error in there. For some this may have something to do with it but not for me. http://sourceforge.net/apps/trac/mpc-hc/ticket/2253
You can bypass it by using CTRL+C and then ALT+X.
Madshi and others have confirmed that there is a problem.
Resolved this issue at least for the moment by assigning the ‘MEDIASTOP’ button to close the file rather than stopping playback and then ‘BROWSERBACK’ to exit out of mpc-hc. Exiting mpc now takes me back to WMC maximized without any issues.