[regression] Assert in BASOP encoder with MASA LTV rate switching
# Basic info <!--- Add commit SHA used to reproduce --> - Fixed point: - Encoder (fixed): 383e7f47f5f36f6bc43d833184b663ec40360d4d (also main but according to git bisect, this introduced it) # Bug description Based on LTV run, there is a new LTV crash in MASA rate switching. Based on git bisect, this was introduced in MR !2326. Stack trace below ![Screenshot_2025-10-08_at_14.02.17](/uploads/d43714b6d3cf597853d8a8ad54e3e4fb/Screenshot_2025-10-08_at_14.02.17.png) # Ways to reproduce <!-- Commandline or script --> ```bash ./IVAS_cod -masa 2 ltv48_MASA2TC.met sw_13k2_512k.bin 48 ltv48_MASA2TC.wav debug.bit ``` <!--- 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. -->
issue