Multicam waveforms should work consistently

I agree 100%. In v25 I'm seeing no waveforms at all in multicam clips, whether I add filters to the master multicam sequence or not. Furthermore, when I render the audio to force Premiere to make them appear, it creates huge, multi GB rendered .cfa files. AND, when I restart the waveforms vanish but I still have the huge render files. So I have to re-render and delete the first set of rendered files. Rubbish. Adobe you really need to fix this. In 2025 how hard is it to simply visualise waveforms. This feature might make me leave for Resolve permanently!