Assertion in lpc2lsp_fx for OMASA LTV input
# Basic info
- Fixed point:
- Encoder (fixed): 909f10c34
# Bug description
Using the OMASA LTV input for BASOP encoder, there is an assertion in frame 1017. The assert is
```
XXXX
```
and the stack trace is here
# Ways to reproduce
Use the LTV input files, rate switching pattern [omasa_1obj_techs_start_128k_20frames.bin](/uploads/f47656448993111111c46c9f3af751da/omasa_1obj_techs_start_128k_20frames.bin) and command line like this
```bash
IVAS_cod -ism_masa 1 2 ltv48_OMASA_1ISM_2TC_ISM1.csv ltv48_OMASA_1ISM_2TC.met -max_band wb omasa_1obj_techs_start_128k_20frames.bin 48 ltv48_OMASA_1ISM_2TC.wav test_0048.bs
```
issue