Fast gradual FPS drop from 70 fps to below 1 with a disconnect after a period of time

There is an issue in the game that when triggered, starts continuously playing a chime/higher pitched bell sound 2-20 times/s and from the first triggering:
- the CPU latency goes up gradually
- the shader cache graph (sometimes?) rises, but then drops to 0 and stays 0
- fps starts dropping gradually
- within about 10-15 seconds, the game fps drops below 1
- the game still responds and can be exited via the main menu
- if I don't exit the game, after a while I get booted to the login screen

I can trigger it with 100% success by:
- removing a support gem from raging spirits (for ex. minion instability, fire infusion)
- adding a support gem to raging spirits (for ex. minion instability, fire infusion)
- removing raging spirits skill gem from skills when it has support gems equipped (for ex. minion instability, fire infusion)
- removing the black doubt unique armor from the character
- removing and immediately placing back flamability skill gem with magnified effect and persistence (it triggers after placing, not removing)

it does not trigger when raging spirits gem is inserted/removed without support gems

Here are some triggers that are less reliable, occuring randomly within a couple of minutes of playing:
- playing with raging spirits turned on with and without support gems and casting fire spells
- having a rare boss on screen with mana drain aura
- having a rare boss on screen with another typer of aura (don't know the type, it has a redish bloody flow from the boss to the outside of the aura ring)
- having a rare boss with periodic immunity aura on screen

I have seen all of these issues:
- so far only after patch 0.1.1
- playing only on the molten vault map and in town (didn't visit other locations)

Hardware:
- asus rog zephyrus g14,
- ryzen 7 4800hs,
- nvidia gtx1660ti,
- 16 gb ram

Settings:
- nvidia reflex off
- everything else default
- drivers up-to-date, settings default

What did not help:
- changing graphics drivers settings
- lowering ingame graphics settings
- turning nvidia reflex on/off
- deleting shader cache

In case the devs want to see some character build details, I am writing this whole report up for the character Kosticocka, that is not from the account I am logged in as on the forums.

When playing multiplayer, the issue showed up only for the Kosticocka character.

Playing the same character on different hardware (ryzen 5 3600, amd rx6700xt, 16 gb ram), the issue showed up immediately after inserting a support gem into raging spirits.

The root cause:
Further testing, I have identified, that the issue is having equipped an item that provides stat bonuses, but without the item you can't actually equip the item. In my case having 27 strength, having equipped a scepter that requires 30 strength and provides 19 strength.
It's doable easily by equiping another +stat itemm, giving enough stats to equip the problematic item, equipping the higher stat requirement item and removing the "starter item". After this, probably any stat requirement recheck triggering effect triggers the issue.