Frequent crash to desktop when exiting maps/changing instances

In the past 1-2 days my game has started to frequently (about 9/10 times) crash to desktop with no error message when exiting a map back to hideout or changing instances, for example from the vaal temple back to the vaal ruins.

The instance is not lost and I can re-enter maps etc, it just closes the game but does allow me to then re-launch and enter at the other side of the loading screen that i crashed on.

This issue hadn't been present since the start of the league, and I haven't changed any PC hardware. (4070 TI, Ryzen 7 7800X3D, 32GB RAM, Windows 10)

I was originally on the standalone client but swapped to steam in the hopes it would potentially help but the issue persisted.

Not sure if its related to running out of RAM as the game had been climbing to 7-8GB of RAM usage in task manager just inside of hideout and nearly doubling that in maps.

Any help in tracking down what might have started causing this would be really appreciated :)

EDIT: Seems fixed with 0.4.0c Hotfix 7

Saw a comment on the patch notes from yesterday "0.4.0c Hotfix 6" where someone was claiming that Ferocious Roar (presumably with Ancestral Cry) was crashing the game when taking a portal, did some testing today and does seem to be the same issue that I'm experiencing.

Started the game and quickly portalled to a zone without Ancestral Cry active with no issue, then portalled back to hideout with it active and immediately crashed. Can replicate this reliably so does seem to be Ancestral Cry when taking a portal that crashes the game.

EDIT: Seems to happen more frequently with Ancestral Cry active but also getting crashes when taking the gem out to cancel the buff before taking portals :(

EDIT 2: Seems fixed with 0.4.0c Hotfix 7