Calyx on nodes (day 21 flower)

Just defoliated and saw some calyx that look to me like ive got myself a hermie. Ive had seeds for the past few grows now with different strains now so im guessing its my environment.

wiped down the tent from previous grow
checked for light leaks (all good)
my environment does run on the colder side (60night - 70day).

Can cold temps lead to hermies?

can pollen linger for multiple grows?

kinda stumped on this one. Any thoughts appreciated.

nah nothing wrong there man
youre just cutting out buds now

It’s fine. Well it was fine. Now it’s going to produce less.

Sometimes a single seed can grow inside those calyx. Without any pollen, or herm the plant still can produce a viable seed all by itself. This only happens with certain strains and during full moon propagation while incantations and hymns are sung