After installing WIP,
Opening 1st Rhino5 window, all is good,
Opening 2nd Rhino5 window (different file), all of my Rhino 5 setting are got reset and are as after a new installation.
Same goes for other new Rhino5 windows.
Had issues with my 3D Space mouse, all of my definitions was not working on those other windows,
Opened windows task manager there i saw that 2nd & 3rd Rhino5 processes were working at 32 bit mode,
Changed the “open with” window dialog back to Rhino 5 64 bit and everything was solved !
so i guess WIP installation had something to do with that…