I started with 2 credits
I wrote my initial base line Tune, and saved, then made changes to idle base only (+200rpms) and saved this tune so the truck would run while being able to make other changes at least that's what i thought.
window popped up and spent the credits to license the ecm etc, when i went to write the second tune with idle adjustment, we got the dreadful error message "you don't have a license to perform the current action, see pic below

I purchase 2 more credits, but decided not to use them, until hopefully some people on here could help????
it's an new MPVI3

2004 chevy silverado, 1500 5.3.
under VCM suite window, in the program:

[COLOR="#B22222"][COLOR="#0000FF"]3/10/2024 10:28:23 PM
VCM Suite Product: VCM Editor 5.0.4

Operating System: Windows 10 (build 19045)
Microsoft .NET: 4.0.30319.42000, 4.7.1 or later
CPU: Intel(R) Core(TM) i7-6500U CPU @ 2.50GHz
Available Memory: 6,129 MB

Device ID: 2181441799
Credits Purchased: 4
Credits Used: 2
Credits Available: 2
Licensed Features: Pro Feature Set,

[Specific Vehicle]
2005 Chevrolet Silverado (8 cyl) 4.8 5.3 6.0 8.1, 0NA0MBDB5073, (2)


ConnectionMethod: USB
ID: 2181441799
HardwareVersion: 2.1.2
ManufactureDate: 11/20/2023 3:55:07 PM
PartNumber: 6250
FirmwareVersion: 5.3.23
FirmwareStageName: Release
FirmwareControllerGroup: 0
PoweredOnTime: 00:34:35
VehicleConnectedTime: 00:00:00
VehicleDiagnosticConnector: 1
Bluetooth HardwareVersion: 2.3.0
Bluetooth FirmwareVersion: 1.0.0


Unable to detect the vehicles diagnostics protocol

i can not believe i would be the only person with this issue