Insert midi presets locked with upgrade 7.5.4

With the last upgrade to Cubase 7.5.4, all the insert midi presets are no more available. I mean Arpache5, Arpache Sx and all the vst insert midi effects they have a window to choose the saved presets. It is that the window is locked, deactivated. Otherwise, if I load Cubase 7.0 the presets are available. Not only, if I look for the presets into the folder, they are physically there, but the midi effect do not load them.

My Cubase runs in Windows7.

I wonder here if anyone has my problem and/or how I can solve it, considering that the last 7.5.4 upgrade concerned a reorganization of MediaBay and perhaps those presets.