Macro command reset does not work

Guides UI and Macro
1

This does not reset after 2 seconds:

/castsequence reset=2 Cenarion ward,Rejuvenation,Grove Guardians,Rejuvenation,Grove Guardians,Rejuvenation,Grove Guardians

Can a blizzard tech support test and fix this this. Or anyone confirm this please. Thanks.

2

reset=2 means reset after not pressing the button for 2s. It does not mean reset 2s after pressing it the first time.