Current ALS CARM OLTF has a bump around 30kHz compared to the OLTF measured in January, 2025 (klog32464).
This bump disturbs to increas ALS CARM UGF to the nominal one (~2kHz).

I measured OLTF of GRX and GRY (fig1,2) but there seems to be no significant diference from the design (UGF~5kHz).
So, it might be come from PLL loops and IMC loops.