Can't copy the lego-test.uf2 files to the EV3 without it crashing.

[mportsmo]

Describe the bug
Can't copy the lego-test.uf2 files to the EV3 without it crashing.

To Reproduce
Attempting to copy the lego-test.uf2 file to EV3 to be able to use MakeCode with EV3.
LEGO EV3 is running 1.10E firmware (updated twice)
Downloaded the lego-test.uf2 file from MakeCode EV3 Interface.
I copy the file from my Downloads to EV3 (represented as USB drive)
The EV3 makes a noise, the screen goes blank and it loses connection to EV3.
If I press the Back button (grey button upper left hand corner), the EV3 wakes back up. The lego-test.uf2 file is not on the EV3.
Downloading from MakeCode does not work.

Expected behavior
Copy uf2 file to EV3 so that MakeCode can be used for programming.

Screenshots

Desktop (please complete the following information):
OS: 10.15.4

Additional context
Have other EV3 software installed (EV3 Classroom) but not running
*Have tried 2 different EV3
*Have reinstalled firmware twice on both EV3s to make sure it's up to date
*Have rebooted computer and checked for updates