Alt Key as X button disturbing my controls

Hello,

Here’s my setup :

  • Windows 10
  • Retroarch 1.7.0
  • JVSPAC device : input JVS arcade cabinet to USB, it maps buttons as keyboard buttons.

My problem : X button is by default mapped as ALT button in the JVSPAC device, it cannot be changed. Since latest versions (I don’t know what disturbed my profile because I have updated RA and Windows 10 at the same time) the ALT button disturbs my controls. When I push Alt button (mapped as X button in Retroarch) I can’t use directions and no other control anymore. For example If was pressing left while pressing alt, it stays stuck in left for a moment.

Do you know where I can find a solution ? it happens only on latest retroarch, never had this problem before.

Best regards