Renderer crash in OMASA to MASA (diffuse_meta_merge_1x1_fx)

Basic info

• Fixed point:
  • Renderer (fixed): d12363f0

Bug description

Rendering OMASA to MASA, the metadata merging seems to cause a crash. For example, the item below crashes in frame 1858 with the stack

L_shl basop32.c:2332
L_shl basop32.c:2332
diffuse_meta_merge_1x1_fx ivas_masa_merge_fx.c:195
ivas_prerend_merge_masa_metadata_fx ivas_masa_merge_fx.c:426
IVAS_REND_MergeMasaMetadata lib_rend_fx.c:7128
main renderer.c:1619

Ways to reproduce

Using LTV content and defining META file ltv48_OMASA_2ISM_2TC.txt with the content

ltv48_OMASA_2ISM_2TC.wav
3
ISM
1
ltv48_OMASA_2ISM_2TC_ISM1.csv
ISM
2
ltv48_OMASA_2ISM_2TC_ISM2.csv
MASA
3
2
ltv48_OMASA_2ISM_2TC.met

Commandline:

IVAS_rend -if meta -i ltv48_OMASA_2ISM_2TC.txt -fs 48 -of MASA2 -o 0083_ltv48_OMASA_2ISM_2TC.wav_MASA2.wav