The primary fire charge up time works with alternate fire, not with whether or not you are zoomed or not. This means that toggling between zoom breaks the charge up mechanic entirely. You can use use primary fire without charge up normally with toggle zoom too, which has already been posted here.
When I was trying to use the replay viewer the buttons for +/- 10 or 60 seconds became unusable after like 20 minutes of watching the game. When I clicked them earlier in the game they worked like they should. But, when I clicked them later in the game after like 10 or 20 minutes they either...