Plasma Blast Being Weird / Buggy When Used With Double Barrel or Second Wind Support Gems

I'm trying to use Plasma Blast gem skill with support gem Hourglass (increase damage by 40%, +10 seconds to cooldown), and another support gem Double Barrel (30% less reload speed, loads an additional bolt), and some weird stuff is happening.

- When I switch my bolt ammunition to Plasma Blast from another ammunition type, a cooldown timer is instantly started on the Load Plasma Bolt skill icon, every time, even if the magazine is full. I can fire at this time, however I cannot fire my second shot or reload until this cooldown completes.

- When reloading from either 0 or 1 bolts to a full magazine of 2 bolts, the same cooldown mentioned above is initiated.

- Starting with a full magazine of 2 bolts, firing the first shot initiates a cooldown, but this time it's the Crossbow Shot skill icon with the cooldown timer. After this cooldown, the second shot can be fired; afterword, the mag is reloaded and a cooldown timer starts on both the Plasma Bolt gem skill icon and the Crossbow Shot skill icon, and no bolts can be fired.

- Using the support gem Second Wind just makes things extra weird, with or without concurrently using Double Barrel. There are even super imposed numbers on the Crossbow Shot and Load Plasma Bolt skill icons, and neither icon nor the superimposed loaded bolt counts can agree with each other.