Eternal Rage, Walking Calamity, Rampage

With Eternal Rage socketed, channeling Rampage at full Rage after triggering Walking Calamity stops at around 5 steps / seconds. Rampaging without Walking Calamity will let it run completely.

Removing Eternal Rage after triggering Walking Calamity results in the same aborted Rampage run. It seems that Rage generated from Eternal Rage messes up Rampage while Walking Calamity is going on. Channeling Rampage from Rage generated from attacks will let it run completely even while Walking Calamity is executing.

Edit: Ok so now it just happens all the time Walking Calamity is active. Also, I now notice that while Walking Calamity is going on, it generates 5 rage and then this immediately is lost (the rage bar goes back to where it was; in my case, it goes back to 0, then 5 then 0 again until Walking Calamity finishes).

It's likely that this fluctuation in Rage during Walking Calamity is messing up with Rampage and likely anything Rage-related executing concurrently.

Edit 2:
I've tried going back to Character selection and I've also quit the game and ran PoE2 anew. These didn't fix the issue. Prior to cutting a gem for Eternal Rage, Rampage and Walking Calamity were working well together, about an hour or so ago. Idk if having Eternal Rage in my profile corrupted something. It's in my stash and I still can't Rampage while WC is going on.