It's been a problem impacting me since before One tamriel with destruction staves. It's well documented and has been reported many times. This bug completely ruins the flow of combat and results in either player or party death, if you're a healer
https://forums.elderscrollsonline.com/en/discussion/394020/channel-heavy-attacks-bugged
https://forums.elderscrollsonline.com/en/discussion/239501/heavy-attack-bug-glitch
https://forums.elderscrollsonline.com/en/discussion/399135/heavy-attacks-not-firing-patch-3-3-8-tested-with-dw-stamina-and-lightning-magicka-on-pc-eu
https://forums.elderscrollsonline.com/en/discussion/404981/heavy-attack-bug
https://forums.elderscrollsonline.com/en/discussion/415887/heavy-attacks-with-restoration-lightning-staves-still-have-issues-firing
https://forums.elderscrollsonline.com/en/discussion/400760/heavy-attack-bug-on-xbox
Most seem to be happening with lightning staff i can confirm I'm still getting the issue on pc with a flame staff, playing with a gamepad.
Please zos, can this get a fix?
https://forums.elderscrollsonline.com/en/discussion/394020/channel-heavy-attacks-bugged
https://forums.elderscrollsonline.com/en/discussion/239501/heavy-attack-bug-glitch
https://forums.elderscrollsonline.com/en/discussion/399135/heavy-attacks-not-firing-patch-3-3-8-tested-with-dw-stamina-and-lightning-magicka-on-pc-eu
https://forums.elderscrollsonline.com/en/discussion/404981/heavy-attack-bug
https://forums.elderscrollsonline.com/en/discussion/415887/heavy-attacks-with-restoration-lightning-staves-still-have-issues-firing
https://forums.elderscrollsonline.com/en/discussion/400760/heavy-attack-bug-on-xbox
Most seem to be happening with lightning staff i can confirm I'm still getting the issue on pc with a flame staff, playing with a gamepad.
Please zos, can this get a fix?