I Think I Just broke Ghost Rider regen!!

Hello! 
I was fighting Groot on AQ M5 right now and, because of MD, my Ghost Rider had back to back SP3. So I used my SP3 while had regeneration active. By the time the SP3 refreshed all GR mojos, I hitted Groot with another heavy attack and activated another regeneation while my previous regeneration was still on! So it refreshed to a new regen but I was not regenerating at all!! I've never seen this mostly because I never did this sequences of hits and special attack, so I dont know if its working as intended or its a bug.
Sorry if this was confuse, but I'm kinda confused as well

I was fighting Groot on AQ M5 right now and, because of MD, my Ghost Rider had back to back SP3. So I used my SP3 while had regeneration active. By the time the SP3 refreshed all GR mojos, I hitted Groot with another heavy attack and activated another regeneation while my previous regeneration was still on! So it refreshed to a new regen but I was not regenerating at all!! I've never seen this mostly because I never did this sequences of hits and special attack, so I dont know if its working as intended or its a bug.
Sorry if this was confuse, but I'm kinda confused as well

2
Comments
i triggered Regen of GR and then I trigger SP3 but GR is not getting any health (regen) . In Fact it does on all types of attack including SP1 and SP2 but SP3 is having no effect on regen.