# Electra not responding anymore to Cubase messages on the USB port after 4.0 upgrade **URL:** \ **Category:** Bug reports\ **Created:** [September 29, 2025, 11:03am UTC](https://forum.electra.one/t/electra-not-responding-anymore-to-cubase-messages-on-the-usb-port-after-4-0-upgrade/3944 "2025-09-29T11:03:02Z")\ **Posts on this page:** 1\ **Showing post:** 8
**Author:** ![Project](https://avatars.discourse-cdn.com/v4/letter/p/a4c791/32.png) [@Project](https://forum.electra.one/u/Project)\ **Post date:** [September 30, 2025, 7:23am UTC](https://forum.electra.one/t/electra-not-responding-anymore-to-cubase-messages-on-the-usb-port-after-4-0-upgrade/3944/8 "2025-09-30T07:23:06Z")
I spoked too early. Now Electra is reacting correctly to MIDI messages coming from Cubase but does not respond anymore to Bank Select - Program Changes to select presets. In this post > [@Changing preset via program change not working anymore after 4.0 update](https://forum.electra.one/t/changing-preset-via-program-change-not-working-anymore-after-4-0-update/3936): > > Hi, I just updated my MKII to the 4.0 Firmware and when I try to select a preset sending a Program Change message to to the Electra CTRL Port no preset switching happens. This was working before with the 3.6.1 firmware. Is there some setting I have to change to make this work? I wrote that Electra stopped responding to Bank Select - Program Changes messages for selecting presets after I upgraded to 4.0. I later discovered that I had to send the messages to the USB Port 1 and not the Electra CTRL port I was using in the previous firmware version, but now it doesn’t respond anymore to these messages, despite sending them to all 3 of the USB ports. There’s definitely something strange going on with MIDI USB ports after the 4.0 upgrade, at least on my system. @martin Is it safe to downgrade to 3.6.1? Or my only option now is to upgrade to the beta 4.0.2? I’ve tried to disable MIDI Control and then enable it again but this didn’t solve the matter --- _[View the full topic](https://forum.electra.one/t/electra-not-responding-anymore-to-cubase-messages-on-the-usb-port-after-4-0-upgrade/3944)._