Sex stamina meter doesn't always show up/go away

[flybox]

Not game-breaking based on my settings and how I play, but I've noticed lately that sometimes the sex stamina meter doesn't appear when sims start having sex. And sometimes it does, but when they finish, it doesn't go away. I haven't done enough testing to see if there are any patterns. Anyone else notice anything like this?

[Tspok]

It doesn't change from standart green bar automatically. You have to close stat window and open again.

To get standart values after sex you have to do the same - close and open stat window.