Scanner/website not working

[PeterMace]

We have an issue with our QR code implementation not being detected on certain scanners. It does work on some which is the confusing part.

Not working:
https://qrcoderaptor.com/
https://www.amazon.com/Handsfree-Standard-Scanner-Shielded-DS9208-SR4NNU21Z/dp/B01C65YOE4/ref=sr_1_3?keywords=zebra+symbol+ds9208&qid=1666968387&qu=eyJxc2MiOiIyLjA3IiwicXNhIjoiMi4xNCIsInFzcCI6IjEuOTEifQ%3D%3D&sprefix=zebra+symbol+ds%2Caps%2C83&sr=8-3&ufe=app_do%3Aamzn1.fos.f5122f16-c3e8-4386-bf32-63e904010ad0

Working:
https://www.amazon.com/Desktop-Omnidirectional-Hands-Free-Automatic-Barcodes/dp/B087CSV7NL/?th=1
-Iphones
Things I have tried without success

1. Setting a white background
2. Changing both predefined and join to true
3. Increase size

[BradleySchapf]

I know this is quite late, but I had a similar issue with some scanners working and others not, but I fixed it by setting the value "swap: true" while creating the QR-code and it fixed my problem.

here is what it says in the documentation "swap - swap X and Y modules, only if you have issues with some QR readers, default: false"

I wonder why that's not set to true by default.