# Basic info <!--- Add commit SHA used to reproduce --> - Fixed point: - Encoder (fixed): 3fe45f3a13339b229bdd4169e742797bb5eb1c89 - Decoder (fixed): 3fe45f3a13339b229bdd4169e742797bb5eb1c89 # Bug description An assert happens withing MDCT core PLC decoding with OSBA BW + rate switching FER input. This is a pretty hardcore combination. It is frame 5412. Stack trace:  # Ways to reproduce <!-- Commandline or script --> ```bash ./IVAS_cod -max_band ./scripts/testv/ivas_bws_20fr_start_WB.txt -ism_sba 4 1 ltvISM1.csv ltvISM2.csv ltvISM3.csv ltvISM4.csv ./scripts/switchPaths/sw_13k2_512k.bin 48 ltv48_OSBA_4ISM_FOA.wav debug3.bit ./scripts/tools/Linux/eid-xor -fer -vbr -bs g192 -ep g192 debug3.bit ./scripts/dly_error_profiles/ep_5pct.g192 debug3_fer.bit ./IVAS_dec -fr 20 -hrtf ./scripts/binauralRenderer_interface/binaural_renderers_hrtf_data/ivas_binaural_16kHz.bin BINAURAL 16 debug3_fer.bit out.wav ``` <!--- Below are labels that will be added but are not shown in description. This is a template to help fill them. Add further information to the first row and remove and add labels as necessary. -->