Bug - GT22 requires restart to function properly

Mr.E

Well-Known Member
I previously posted this on the Ax-Fx forum because I thought it was a problem with the AF3.
I have a button to simultaneously switch channels in two amp blocks.
At one point, only one amp would switch channels.
I then programmed separate buttons for both amp blocks and that worked.
Only when switching both at the same time, it started switching only one amp block.
Sometimes I had to turn the GT22 off and on again to make it work again.

Now it's the second time that I had to power toggle the GT22 after powering up with the AF3.
Just to be clear, the GT22 is connected with a 7-pin cable and powers on together with the AFG3 when I power up the rack.
 
Actually, even better would be to hook up a MIDI interface to the MIDI Thru port on the Axe-Fx and see what's coming out. Are you getting two Sysex messages every time you press that message? If it starts only sending one Sysex at some point, it's probably a GT bug. If two sysexes still come out, even when you can only get one channel to change, it's probably an Axe-Fx bug.
 
I managed to see the sysex by turning off "Poll State" and "Sync Names"

I see two messages each time I switch channels:
TIMESTAMP IN PORT STATUS DATA1 DATA2 CHAN NOTE EVENT
39701 2 -- 240 Buffer: 11 Bytes System Exclusive
SYSX: 240 0 1 116 16 11 58 0 0 36 247
39704 2 -- 240 Buffer: 11 Bytes System Exclusive
SYSX: 240 0 1 116 16 11 59 0 0 37 247

49335 2 -- 240 Buffer: 11 Bytes System Exclusive
SYSX: 240 0 1 116 16 11 58 0 1 37 247
49338 2 -- 240 Buffer: 11 Bytes System Exclusive
SYSX: 240 0 1 116 16 11 59 0 1 36 247

63881 2 -- 240 Buffer: 11 Bytes System Exclusive
SYSX: 240 0 1 116 16 11 58 0 2 38 247
63884 2 -- 240 Buffer: 11 Bytes System Exclusive
SYSX: 240 0 1 116 16 11 59 0 2 39 247

66663 2 -- 240 Buffer: 11 Bytes System Exclusive
SYSX: 240 0 1 116 16 11 58 0 3 39 247
66666 2 -- 240 Buffer: 11 Bytes System Exclusive
SYSX: 240 0 1 116 16 11 59 0 3 38 247
 
Last edited:
I probably should have waited until it occurred again.:(
The above messages were from when everything is working fine
 
After leaving the AxeFx and GT22 on for a couple of hours, it happened again.
And this time I found the problem:

TIMESTAMP IN PORT STATUS DATA1 DATA2 CHAN NOTE EVENT
64891 2 -- 240 Buffer: 11 Bytes System Exclusive
SYSX: 240 0 1 116 16 11 59 0 0 37 247
64894 2 -- 240 Buffer: 11 Bytes System Exclusive
SYSX: 240 0 1 116 16 11 59 0 0 37 247


Instead of sending a CC to #58 and #59, it sends it twice to #59.
I checked the preset - downloaded the settings to the editor - and those were unchanged.

Turned the GT22 off and on again and all worked fine again.
 
Back
Top