When pressing:
Device settings -> Communication -> QR Scanner -> "Reset QR Module"
With the following Scanner Module Firmwares (bzw. the very old GM65 Scanner Modules)
GM65 SW 137 and GM65 SW 134
Then it's showing:

But it's still resetting something causing it to not scanning it until you restart the device which fixes the scanner again.
I was reproduce that with the reset QR-Code from the GM65 Manual at 1.7 as well:
https://github.com/3rdIteration/SerialBarcodeReaderTools/blob/master/Manuals/GM65/GM65-S-UserManual.pdf

After the first bug the scanner also said something like "Failed to configure Scanner" when you want to change the scanner settings until restarting the device which makes everything work normal again.
When pressing:
Device settings -> Communication -> QR Scanner -> "Reset QR Module"
With the following Scanner Module Firmwares (bzw. the very old GM65 Scanner Modules)
GM65 SW 137 and GM65 SW 134
Then it's showing:

But it's still resetting something causing it to not scanning it until you restart the device which fixes the scanner again.
I was reproduce that with the reset QR-Code from the GM65 Manual at 1.7 as well:

https://github.com/3rdIteration/SerialBarcodeReaderTools/blob/master/Manuals/GM65/GM65-S-UserManual.pdf
After the first bug the scanner also said something like "Failed to configure Scanner" when you want to change the scanner settings until restarting the device which makes everything work normal again.