bladeRF 2.0 micro xA4 behaving erratically when sampling rate is just changed

[nitinvjain]

Refer to connected issues:

srsran/srsRAN_4G#1248

and #778

Can @robertghilduta or somebody from Nuand provide a solution of failing benchmark_radio due to bladeRF becoming unstable when changing sampling rate (happens when sampling rate is even changed to same value)?
command used from srsRAN_4G repo: ./lib/src/radio/test/benchmark_radio -s 11.52e6 -f 801.3e6 -t 10 -x -y

or ./lib/src/radio/test/benchmark_radio -s 1.92e6 -f 801.3e6 -t 10 -x -y
Please do help.
Setup:

bladeRF-cli version: 1.8.0-git-unknown
libbladeRF version: 2.4.1-git-unknown

Firmware version: 2.4.0-git-a3d5c55f
FPGA version: 0.14.0 (configured by USB host)

I have tried export BLADERF_DEFAULT_TUNING_MODE=fpga and host

I even tried FPGA version 0.15.0 but no difference.