I’m slowly connecting the docs here. I have found a similar issue with the storage card which at first I mapped to the storage card itself, completely forgetting i have had this issue here with the SD card, but also with a USB-A card, see [SOLVED] USB-A Expansion Card stops working until unplugged - #14 by anarcat.
Further tests show the problems might be specific with this one port, and i’m in a conversation with support about how to fix that, stay tuned!