Decoder crash for Stereo at 96kbps FER in IGF_appl_ivas()

The fixed point decoder crashes with an assert in basop32.c:1786:

Frames processed:       2303    Assertion failed: (0), function L_add, file basop32.c, line 1786.

Steps to reproduce:

./IVAS_cod_flt_ref -stereo -max_band FB 96000 48 experiments/basop-verification/stereo-noisy_speech-p800-2/proc_input_d/cat1/20ms_aligned_files_concatenated.wav out/stereo-noisy_speech-p800-2-cat1-lab_d--20ms_aligned_files_concatenated--96000.192
eid-xor -vbr -fer out/stereo-noisy_speech-p800-2-cat1-lab_d--20ms_aligned_files_concatenated--96000.192 error_patterns/stereo-noisy_speech-p800-2-cat1-lab_d--20ms_aligned_files_concatenated--96000_ep.192 out/stereo-noisy_speech-p800-2-cat1-lab_d--20ms_aligned_files_concatenated--96000.fer.192
./IVAS_dec_fx stereo 48 out/stereo-noisy_speech-p800-2-cat1-lab_d--20ms_aligned_files_concatenated--96000.fer.192 out/stereo-noisy_speech-p800-2-cat1-lab_d--20ms_aligned_files_concatenated--96000.fer.dec.fx.wav

Float reference SHA (_flt_ref): d9fdb374

FX binary SHA (_fx): 2470528b

Error pattern file: stereo-noisy_speech-p800-2-cat1-lab_d--20ms_aligned_files_concatenated--96000_ep.192

Bitstream can be shared upon request.