Chance of DoT and Regular DoT on one equipment are not stackable

[mi023]

See the following pictures.
① and ② are not stackable.
③ and ④ are not stackable.

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Testing process:
Use weapon in picture 1. Cunning is 943 and % Bleed Damage is 215%. Use default weapon attack (100% Weapon Damage).
Normal Bleed Damage = 168/3*(1+943/215+215%) = 422.
Chance of Bleed Damage = 243/3*(1+943/215+215%) = 610.
If stackable, total Bleed Damage should be 1032. Therefore, we can observe two numbers, 422 and 1032.
If not stackable, we can observe 422 and 610.
The result is the latter.

[ibugsy]

IIRC, DoTs are not stackable if from same source. If the latest dot is more powerful, it goes. Otherwise the timer refreshes.

Edit: DoTs do stack if from different sources.
See the Game Guide, Combat

Grim Dawn

Grim Dawn

[Gnomish_Inquisition]

normal DoT mechanics would/should make the chance dot into combined wd dot, “1” source
since native flat, non chance affix flat, component flat and augment flat dot is treated this way

[mi023]

DoT from Wendigo Claw, Bloodthirsty and Of Cruelty are stackable.
But DoT from Wendigo Claw, Heart Piercing and Of Slaughter are not stackable.
Bloodthirsty, Of Cruelty, Heart Piercing and Of Slaughter are all affixes. They should be treated fairly. This is what this topic means.