MPQ7225 - Problem occurring when the number of serial LEDs per channel differs

I am using the MPQ7225A and controlling all LEDs on all channels by controlling channel 1 using the Global Dimming method.

Three LEDs are connected in series on channel 1, and two identical LEDs are connected in series on channel 2.

When in operation, the channel with 3 LEDs is bright and the channel with 2 LEDs is dark.

VBIAS is 6.95V and ISET is 8.6Kohm.

What could be the causes?

A fault signal is detected; based on a channel with three LEDs connected in series, is it recognizing one LED as short-circuited in a channel with two LEDs connected in series?

Added circuit photos since there were no replies. In the schematics, each channel on a single IC is set up with a different number of LEDs.

A fault signal keeps popping up in this setup. Could someone point out what might be wrong here?