This has started happening since 2.8.x release. When I restart the switch with the dongle (or without the dongle in 2.9.2 beta since it is supported) the SX-OS boot screen is shown and the switch boots OK, but sometimes (like 1 in 5 tries) it will boot into OFW instead the CFW. After rebooting again it will boot the CFW. The CFW is on emunand on the switch flash. It is more annoyance than anything since you have to boot it twice sometimes, but would like to know if this is normal or if there is something wrong with the SD card (it checks out ok in windows).