Encoder/decoder mismatch when turning off SDP

What version / commit were you testing with?

on research-v4.0.0 anchor

What steps will reproduce the problem?

aomenc /cephfs/group/sng-science/sequences_aom/av2ctcfinal/SceneComposition_1.y4m --passes=1 --end-usage=q --qp=185 --skip=0 --limit=30 --kf-min-dist=0 --kf-max-dist=0 --use-fixed-qp-offsets=1 --deltaq-mode=0 --enable-tpl-model=0 --obu --enable-keyframe-filtering=0 -o Bin_cpu-used0enable-sdp0_T1AI_B2_S06_qp185_s0_f30.bin --bit-depth=8 --psnr --verbose --tile-columns=0 --threads=1 --row-mt=1 --test-decode=fatal --cpu-used=0 --enable-sdp=0 1> Enc_cpu-used0enable-sdp0_T1AI_B2_S06_qp185_s0_f30.log

What is the expected output?

No mismatch and no crash.

What do you see instead?

Encoder and decoder mismatch.

Please use labels and text to provide additional information.