LED doesn't blink when using the sample sketch "blink"

[MikiyaKobayashi]

■ Corresponding version
v1.2.0 and Before v.1.2.0

■ Contents and Occurrence conditions
LED does not blink when using sample sketch "Blink"

■ Workaround
Use the sketch provided in the Quick Start Guide

■ Permanent measures
Scheduled to be fixed in V1.2.1