Thank you! Probably then I will try another SD card first, before dismissing Coldcard altogether.
Understandable. Since you spoke about Foundation Passport you can find a lot of information (and feedback) about it on the official thread[1] before deciding in buying it or not.
Do keep us updated if the problem persisted after the new SD or not (for future reference).
[1]
https://bitcointalk.org/index.php?topic=5441422.0