X310 handover issue

[alexjiao2021]

Hi,
I'm using latest srsRAN code (commit d90cd4e) to test handover with X310.
I'm referencing documentation here:
https://docs.srsran.com/projects/project/en/latest/tutorials/source/handover/source/index.html
I have modified the sample config and found the key parameters that will have impact on cell1 and cell2 DL SSB signal:

srate: 30.72
lo_offset: 0

In sample config they are set like this:

srate: 92.16
lo_offset: 45

The cells bandwidth are 20MHz, I wonder why the sample config set the parameters like that? The cell1 power is very low and has bad EVM, cell2 has no signal using the sample config parameters.
If using srate 30.72M and lo_offset 0 I can get stable cell1 SSB, but cell2 SSB will not get sync on spectrum analyzer after a while.
Also I can't set tx_gain to 10 for cell1 using below command:
tx_gain 0 10

Below is gnb log and terminal output:
x310_ho_fail.txt
gnb.log

Below is my config:
handover_x310.yml

I have already run the srsran_performance script.

Can someone please have a look and advise? Thanks!