Thanks for confirming.
The SDHost SD card driver is relatively new, but it works well with most cards.
I personally never recommend Transcend or Kingston SD cards, as they don’t have good 4K random write speeds and they seem to give users the most hassle.
I’ll see how SDHost holds up, if the issue is very widespread (although it does not seem to be), then we can always revert to the MMC SD card driver by default.
Cheers
Sam