Here’s an annoying bug I’ve been experiencing a lot.
The static discharge prevents kit swapping if you swap at a very specific point in the animation.
I made a little video showing the bug, keep your eyes on the skill bar and you will see in the first segment that I tried to swap to medikit after healing myself with the toolbelt heal but it failed, in the second segment, I tried to swap to grenade kit right after using rocket kick.
http://youtu.be/SjW4h05bsuU
Back me up on the issue by posting in the topic I made in the Game bug section.
https://forum-en.gw2archive.eu/forum/support/bugs/Engineer-Static-discharge-cancels-kit-swap/