Just upgraded from MP 1.1 to MP 1.2 Alpha + StreamedMP 1.4X. I upgraded MP first then installed StreamedMP 1.4X, the streamedmp installer uninstalled the existing version of streamedmp prior to installing the new version. Process was smooth, however my tv series didn't work properly, so I quit MP run the MP Config, Ran My TV Series Config. Clicked import new episodes (0 imported) then closed everything + restarted mediaportal. After that everything worked fine.