Tiny BLE on os/x el capitan

Hi,

Just got a new Tiny BLE, compiled the mbed blink sketch, plugged in the board and saw that the MBED device appears.

When I dropped mbed_blinky_ARCH_BLE.hex onto the device in the Finder that crashed.

I saw that a new firmware version is available and applied that so now we are on Version: 0221.

Dropped the .hex file again and the Finder still crashes.

Any suggestions?

Strangely, when coming back to this a few days later, this problem had gone away.