Not quite the same but related to it.
If I plug my CoreElec SD card into my Linux (opensuse) computer it loads the STORAGE partition as a different user to my Linux account and then wont let me alter anything on the card. This is very inconvenient as it forces me to do modifications over SAMBA whilst the card is running the CoreElec system. I need to copy over some Userdata Addon-data folders to customise my build.
If I try to run my file browser as ROOT it doesn't show either of the SD partitions because they have been allocated to the user account on plugging in the SD card.
This maybe a consequence of the draconian permissions policy within Opensuse, but when I try to mount the card in Win7 it only shows the SYSTEM partition and the STORAGE is missing because its ext4 format.