Keyboard controls Issue: control stuck in one direction

[repuken2]

Hello everybody,

i installed ppsspp 9.8 on my arcade machine, i have a j-pac, so my control is an usb keyboard.

Whenever a play a game , after a while the controls get stucked in one direction, only directionals D-PAD (up,down,left, right), action buttons seems fine (X, circle, etc). Tried 9.7 and 9.6 but same problem exists. Tried metal slug XX, Street Fighter Alpha 3 MAX, puzzle bobble, Ultimate Ghouls n' Ghosts to see if it was game specific but same thing.

All other emulators and pc games controls work fine (Mame, Desmume, CPS3, model2, model3, zsnes, etc) so it seems ppsspp related.

Did anybody had the same issue?
Any suggestion?

Thanks in advance,
cheerz.