Microcode freezing

[Lorrainbow]

Version: 2.5.47
Issue type: major bug
Hardware: elecfreaks (smaller screen)

Replicate

1. From the home screen select the save icon
2. Select any of the saved files (1, 2 or 3). I chose 1
3. In the blank screen create a program

This is difficult to replicate. It seems to be connected to speed. If you do the actions quickly, the micro:bit freezes

Current program has frozen on:
WHEN
Light level

Has frozen on choosing the number of the light level.

Another scenario, freezing on a long program? Program below.

Frozen:
After creating the last line
After reboot and selecting the = sign
After reboot on the home screen