I’m currently working with the nRF52833 and W25Q512JVEIQ, trying to set up a USB mass storage application with an external SPI flash. After reviewing the sample code and configuring my custom board, I encountered an issue where the mount_app_fs(mp) function returns -5. I’m wondering if this is a common mistake for someone new to the NCS environment and if there are specific configurations or functions I might have overlooked. Any insights or troubleshooting steps would be greatly appreciated!