Chaos damage is not available in unveiling

I unveiled 65+ weapons and I got 0 with chaos damage and Chaos Skills increased Skill Effect Duration in the last 2 days. For actual unveil, I blocked with phy dmg before unveiling. I noticed that the elemental & chaos penetrations were always available. Finally, I have this weapon and when I unveiled it there were only two options which were both penetrations even though chaos dmg+duration is possible as the 3rd option.

Can't get the image to work but here are the links
https://ibb.co/LPMzsjv
https://ibb.co/CKC23Xx

The Chaos Damage mod shares the same mod group as the elemental damage mods and the spell damage mods.

If only two modifiers were available on that wand, it must've had a mod that conflicted with the above mods, or else one of them would have shown up instead of showing no 3rd option.

I am up to 80+ items unveiled now and still haven't one chaos dmg+duration

I did purchase 10+ in trade trying to prove it's possible but no go. The possibility of not getting a 10% chance craft with 80+ tries is super low so I don't get it. I did previously crafted one with 2 tries 2 weeks ago, but something is not right this week.

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HaD0K3n wrote:

I did purchase 10+ in trade trying to prove it's possible but no go. The possibility of not getting a 10% chance craft with 80+ tries is super low so I don't get it. I did previously crafted one with 2 tries 2 weeks ago, but something is not right this week.

have you filtered out all item with mod group confliction

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neohongkong wrote:

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HaD0K3n wrote:

I did purchase 10+ in trade trying to prove it's possible but no go. The possibility of not getting a 10% chance craft with 80+ tries is super low so I don't get it. I did previously crafted one with 2 tries 2 weeks ago, but something is not right this week.

have you filtered out all item with mod group confliction

Not sure what you meant exactly. I did use phy damage to block when possible.

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HaD0K3n wrote:

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neohongkong wrote:

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HaD0K3n wrote:

I did purchase 10+ in trade trying to prove it's possible but no go. The possibility of not getting a 10% chance craft with 80+ tries is super low so I don't get it. I did previously crafted one with 2 tries 2 weeks ago, but something is not right this week.

have you filtered out all item with mod group confliction

Not sure what you meant exactly. I did use phy damage to block when possible.

They are saying that if the item already has a mod from mod group 1, it can't roll the Chaos dmg/skill effect mod.

See mod group 1: https://i.imgur.com/GDCwdtA.png

Notice on your Convening Wand, it has "%increase Minion Damage". Note that that mod is in mod group 1. That is why that particular Convening Wand cannot ever roll Chaos dmg/skill effect duration unveil - it already has a mod from mod group 1.

See for more info: https://www.craftofexile.com/?b=67&bi=8325&ob=both&v=d&a=e&l=a&lg=14&bp=y&as=1&hb=0&bld={}&im={}&ggt=|&ccp={}