Question about user password

[D1987]

I build custom_stage via gitlab pipeline. In my a config file I pass user and password values via jinja2

FIRST_USER_NAME="{{ PI_USER }}"
FIRST_USER_PASS="{{ PI_PASSWORD }}"

From a cat command I see values applied. Then I write a final image via Raspberry Pi Imager and when I raspberry device boot but my password wrong. It took my previous test password - pi.
How to manage password?

[XECDesign]

Are you sure your SD card hasn't gone into read-only mode?

Some SD cards fail in a way that makes them behave as if they're writing data, but if you read the data back (with cleared caches), then you get back old data. That makes the card appear as if everything is working fine, but changes don't survive reboot or remount.

Are you applying any customisation options using Imager?

[D1987]

I use default setting when write image I mean the settings from pi-gen build not Raspberry Imager.
I'll check your case about read-only mode.
Thanks.

[XECDesign]

I mean the settings from pi-gen build not Raspberry Imager.

I understand that, but I mean in addition to the pi-gen customisations, what are you doing with rpi-imager? It asks you whether you'd like to apply customisations and you need to answer yes or no, there's no default. If you accidentally clicked yes, it may be writing setting you had saved earlier. So I just wanted to be sure that that didn't happen.

I know it's unlikely, but the behaviour you're seeing is a bit strange - there is no where else for it to be getting the password 'raspberry' from.