Possible bug report: Volcanic Fissure and Thunderous Leap interactions

Volcanic Fissure says: "Slam the ground, creating a winding fissure that deals damage as it travels and remains for a duration. Using a different Slam on a fissure will cause an Aftershock*, which spreads to all connected fissures.*"

If I use Thunderous Leap on swap, it does create aftershocks and it opens up some cool interactions I've been already playing around with. However, I put Volcanic Fissure on Ancestral Totem, and then the Leap doesn't work on created fissures and doesn't create aftershocks. Nothing in that skill description indicates that the player has to use it and not the totem.

Doesn't seem like this is intended.