"The disk you attached was not readable by this computer" / Debian 12 image / MacOS

Hello everyone,
I have a problem where I can't find a solution.
I'm trying to flash the new image of the V3.0.0 image on a SD card using Pi Imager or BalenaEtcher, but after everything finishes and I reinsert the SD card, I get the error message mentioned above.
My process is as follows:
- Insert SD Card (I tried two SD cards and two SD card readers)
- Erase it using SD card formatter (5.0.3) or Pi imager ( I tried both)
- Downloading the image ( Minimal or Klipper, both finished successfully, and I downloaded them several times. Also tried the armbian build.)
- Use Pi imager (1.8.5) or BalenaEtcher (1.19.25) to flash the image on the SD card
- Process finishes successfully and ejects the SD card.
- Reinsert the SD card and get the error message mentioned above. (Options are eject, ignore or initialize. )

I'm using a 2019 Macbook Pro with Sonoma 14.6.1 and the CB1_V2.2 with the adatper board.

Also flashing the V2.3.4 image works just fine.

Is there anything I'm missing?
Thank you in advance for any help!

No source file or test is named. Reproduce the V3.0.0 Minimal and Klipper flashing flow with the CB1_V2.2 and adapter board on macOS, then compare it with the working V2.3.4 process; done when V3.0.0 works or the incompatibility and supported flashing path are documented.

Written by the indexing model from the issue text.