[U-Boot] MBR Signature mismatch on specific SD card

Hi all,

Recently we have been trying to setup Yocto with U-Boot. We kept getting errors on U-Boot: MBR Signature mismatch: {some code, I guess sector?}

After many hours of messing around with different builds and write settings, I tried another SD card and it suddenly started working. Are there any known issues with some SD cards? Flashing Raspbian on them works fine. If required, I'm able to get some more details on the specific SD cards. Or would you suggest just buying some other SD card?

Kind regards,

Jeroen Bobbeldijk