It's being reported tonight that an unnamed "former BBC presenter" made allegations about Scott Mills to the corporation in May 2025, but the BBC did nothing about them.
https://www.mirror.co.uk/3am/celebrity-news/breaking-bbc-knew-scott-mills-36951242
It's scarcely believable that the BBC did nothing given that the Huw Edwards conviction was just a few months earlier, but it does appear to be the case.