We recently applied ColdFusion Update 13 on CF 2021 and hitting an issue where CFID cookie seems to be dropped. Anybody else seeing something like this? (I don't have full details or steps to repro yet but just want to ask in case there may be some known issues around this.)

We definitely are not seeing that, in either of two big apps, in production or dev.

Might be totally non-applicable here, but I seem to recall a similar issue when pages were transitioning between http and https.

I've narrowed it down to an issue with CFU13 and Taffy.