Lepton 2.5 Breakout board V3 Red square with error note

[galih-prakoso]

Helo,

I am student and still new in Iepton. I use lepton 2.5, Breakout board V2, and Raspberry pi 4. I follow the procedure as YouTube video https://www.youtube.com/watch?v=cHSOR_oe1yw&ab_channel=GroupGets

Because there is no qt4-dev-tools, so I use qttools5-dev-tools. The other step I follow YouTube procedure.

and get error like this:
raspberrypi_video:2796): GLib-GObject-CRITICAL **: 12:30:47.342: g_object_unref: assertion 'G_IS_OBJECT (object)' failed

And also together with black window contains Red square at the left top corner as shown here:

Appreciate for any help.

Galih Prakoso