I have installed GIMP 2.8.2 GTK and the Layerfx.py in the correct folder. How ever... Gradient layer effects does only apply once after layerfx.py has been downloaded to the plug-in folder. After that it "does the work" but it does not apply. No error messages or anything. It runs the process but there is nothing in the alphalayer created.
If I delete the Layerfx.py file and start GIMP and then close it and install the file again it works once. I think I could be the error in this...
If any one could hint me in right direction I would be happy. I DuckDuckGo and Google for a answer but was not lucky.